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Finding the Fourth Proportional to 585,129.33, 807,535.76 and 355,669.29

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Solution

The fourth proportional to 585,129.33, 807,535.76 and 355,669.29 is: 490,858.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,129.33 : 807,535.76 = 355,669.29 : x
  2. Step 2: Convert to fraction form
    585,129.33/807,535.76 = 355,669.29/x
  3. Step 3: Cross multiply
    585,129.33x = 807,535.76 × 355,669.29
  4. Step 4: Simplify right side
    585,129.33x = 287,215,668,630.46
  5. Step 5: Solve for x
    x = 287,215,668,630.46/585,129.33
  6. Step 6: Final answer
    x = 490,858.44

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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.