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Finding the Fourth Proportional to 802,641.43, 1,107,489.22 and 475,894.09

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Solution

The fourth proportional to 802,641.43, 1,107,489.22 and 475,894.09 is: 656,641.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,641.43 : 1,107,489.22 = 475,894.09 : x
  2. Step 2: Convert to fraction form
    802,641.43/1,107,489.22 = 475,894.09/x
  3. Step 3: Cross multiply
    802,641.43x = 1,107,489.22 × 475,894.09
  4. Step 4: Simplify right side
    802,641.43x = 527,047,574,536.71
  5. Step 5: Solve for x
    x = 527,047,574,536.71/802,641.43
  6. Step 6: Final answer
    x = 656,641.38

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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.