Home / 762,148.56-1,051,281.92-489,747.72

Finding the Fourth Proportional to 762,148.56, 1,051,281.92 and 489,747.72

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Solution

The fourth proportional to 762,148.56, 1,051,281.92 and 489,747.72 is: 675,541.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,148.56 : 1,051,281.92 = 489,747.72 : x
  2. Step 2: Convert to fraction form
    762,148.56/1,051,281.92 = 489,747.72/x
  3. Step 3: Cross multiply
    762,148.56x = 1,051,281.92 × 489,747.72
  4. Step 4: Simplify right side
    762,148.56x = 514,862,923,397.22
  5. Step 5: Solve for x
    x = 514,862,923,397.22/762,148.56
  6. Step 6: Final answer
    x = 675,541.42

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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.