Home / 827,717.31-1,142,279.96-465,148.35

Finding the Fourth Proportional to 827,717.31, 1,142,279.96 and 465,148.35

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Solution

The fourth proportional to 827,717.31, 1,142,279.96 and 465,148.35 is: 641,921.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,717.31 : 1,142,279.96 = 465,148.35 : x
  2. Step 2: Convert to fraction form
    827,717.31/1,142,279.96 = 465,148.35/x
  3. Step 3: Cross multiply
    827,717.31x = 1,142,279.96 × 465,148.35
  4. Step 4: Simplify right side
    827,717.31x = 531,329,636,306.32
  5. Step 5: Solve for x
    x = 531,329,636,306.32/827,717.31
  6. Step 6: Final answer
    x = 641,921.62

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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.