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Finding the Fourth Proportional to 904,697.56, 1,248,434.13 and 496,720

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Solution

The fourth proportional to 904,697.56, 1,248,434.13 and 496,720 is: 685,446.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,697.56 : 1,248,434.13 = 496,720 : x
  2. Step 2: Convert to fraction form
    904,697.56/1,248,434.13 = 496,720/x
  3. Step 3: Cross multiply
    904,697.56x = 1,248,434.13 × 496,720
  4. Step 4: Simplify right side
    904,697.56x = 620,122,201,053.60
  5. Step 5: Solve for x
    x = 620,122,201,053.60/904,697.56
  6. Step 6: Final answer
    x = 685,446.97

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Similar ratio
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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.