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Finding the Fourth Proportional to 802,646.85, 1,107,496.67 and 475,899.49

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Solution

The fourth proportional to 802,646.85, 1,107,496.67 and 475,899.49 is: 656,648.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,646.85 : 1,107,496.67 = 475,899.49 : x
  2. Step 2: Convert to fraction form
    802,646.85/1,107,496.67 = 475,899.49/x
  3. Step 3: Cross multiply
    802,646.85x = 1,107,496.67 × 475,899.49
  4. Step 4: Simplify right side
    802,646.85x = 527,057,094,892.22
  5. Step 5: Solve for x
    x = 527,057,094,892.22/802,646.85
  6. Step 6: Final answer
    x = 656,648.81

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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.