Home / 779,836.50-1,076,177.25-422,140.50

Finding the Fourth Proportional to 779,836.50, 1,076,177.25 and 422,140.50

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Solution

The fourth proportional to 779,836.50, 1,076,177.25 and 422,140.50 is: 582,555.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,836.50 : 1,076,177.25 = 422,140.50 : x
  2. Step 2: Convert to fraction form
    779,836.50/1,076,177.25 = 422,140.50/x
  3. Step 3: Cross multiply
    779,836.50x = 1,076,177.25 × 422,140.50
  4. Step 4: Simplify right side
    779,836.50x = 454,298,002,403.63
  5. Step 5: Solve for x
    x = 454,298,002,403.63/779,836.50
  6. Step 6: Final answer
    x = 582,555.45

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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.