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Finding the Fourth Proportional to 506,483.54, 698,900.36 and 280,124.18

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Solution

The fourth proportional to 506,483.54, 698,900.36 and 280,124.18 is: 386,545.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,483.54 : 698,900.36 = 280,124.18 : x
  2. Step 2: Convert to fraction form
    506,483.54/698,900.36 = 280,124.18/x
  3. Step 3: Cross multiply
    506,483.54x = 698,900.36 × 280,124.18
  4. Step 4: Simplify right side
    506,483.54x = 195,778,890,246.71
  5. Step 5: Solve for x
    x = 195,778,890,246.71/506,483.54
  6. Step 6: Final answer
    x = 386,545.42

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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.