Home / 749,470.34-1,034,243.28-427,284.20

Finding the Fourth Proportional to 749,470.34, 1,034,243.28 and 427,284.20

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Solution

The fourth proportional to 749,470.34, 1,034,243.28 and 427,284.20 is: 589,637.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,470.34 : 1,034,243.28 = 427,284.20 : x
  2. Step 2: Convert to fraction form
    749,470.34/1,034,243.28 = 427,284.20/x
  3. Step 3: Cross multiply
    749,470.34x = 1,034,243.28 × 427,284.20
  4. Step 4: Simplify right side
    749,470.34x = 441,915,807,328.96
  5. Step 5: Solve for x
    x = 441,915,807,328.96/749,470.34
  6. Step 6: Final answer
    x = 589,637.49

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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.