Home / 779,861.10-1,076,169.78-435,628.74

Finding the Fourth Proportional to 779,861.10, 1,076,169.78 and 435,628.74

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Solution

The fourth proportional to 779,861.10, 1,076,169.78 and 435,628.74 is: 601,146.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,861.10 : 1,076,169.78 = 435,628.74 : x
  2. Step 2: Convert to fraction form
    779,861.10/1,076,169.78 = 435,628.74/x
  3. Step 3: Cross multiply
    779,861.10x = 1,076,169.78 × 435,628.74
  4. Step 4: Simplify right side
    779,861.10x = 468,810,485,287.48
  5. Step 5: Solve for x
    x = 468,810,485,287.48/779,861.10
  6. Step 6: Final answer
    x = 601,146.13

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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.