Home / 748,814.30-1,033,436.40-442,989.12

Finding the Fourth Proportional to 748,814.30, 1,033,436.40 and 442,989.12

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Solution

The fourth proportional to 748,814.30, 1,033,436.40 and 442,989.12 is: 611,367.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,814.30 : 1,033,436.40 = 442,989.12 : x
  2. Step 2: Convert to fraction form
    748,814.30/1,033,436.40 = 442,989.12/x
  3. Step 3: Cross multiply
    748,814.30x = 1,033,436.40 × 442,989.12
  4. Step 4: Simplify right side
    748,814.30x = 457,801,081,411.97
  5. Step 5: Solve for x
    x = 457,801,081,411.97/748,814.30
  6. Step 6: Final answer
    x = 611,367.98

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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.