Home / 749,385.71-1,034,126.69-427,199.60

Finding the Fourth Proportional to 749,385.71, 1,034,126.69 and 427,199.60

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Solution

The fourth proportional to 749,385.71, 1,034,126.69 and 427,199.60 is: 589,520.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,385.71 : 1,034,126.69 = 427,199.60 : x
  2. Step 2: Convert to fraction form
    749,385.71/1,034,126.69 = 427,199.60/x
  3. Step 3: Cross multiply
    749,385.71x = 1,034,126.69 × 427,199.60
  4. Step 4: Simplify right side
    749,385.71x = 441,778,501,010.69
  5. Step 5: Solve for x
    x = 441,778,501,010.69/749,385.71
  6. Step 6: Final answer
    x = 589,520.85

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Double scale
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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.