Home / 779,725.69-1,076,024.70-422,029.69

Finding the Fourth Proportional to 779,725.69, 1,076,024.70 and 422,029.69

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Solution

The fourth proportional to 779,725.69, 1,076,024.70 and 422,029.69 is: 582,402.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,725.69 : 1,076,024.70 = 422,029.69 : x
  2. Step 2: Convert to fraction form
    779,725.69/1,076,024.70 = 422,029.69/x
  3. Step 3: Cross multiply
    779,725.69x = 1,076,024.70 × 422,029.69
  4. Step 4: Simplify right side
    779,725.69x = 454,114,367,883.28
  5. Step 5: Solve for x
    x = 454,114,367,883.28/779,725.69
  6. Step 6: Final answer
    x = 582,402.73

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.