Home / 1,005,640.40-1,387,761-546,748.40

Finding the Fourth Proportional to 1,005,640.40, 1,387,761 and 546,748.40

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Solution

The fourth proportional to 1,005,640.40, 1,387,761 and 546,748.40 is: 754,500.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,640.40 : 1,387,761 = 546,748.40 : x
  2. Step 2: Convert to fraction form
    1,005,640.40/1,387,761 = 546,748.40/x
  3. Step 3: Cross multiply
    1,005,640.40x = 1,387,761 × 546,748.40
  4. Step 4: Simplify right side
    1,005,640.40x = 758,756,106,332.40
  5. Step 5: Solve for x
    x = 758,756,106,332.40/1,005,640.40
  6. Step 6: Final answer
    x = 754,500.42

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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.