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Finding the Fourth Proportional to 514,607.82, 710,162.98 and 285,168.97

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Solution

The fourth proportional to 514,607.82, 710,162.98 and 285,168.97 is: 393,535.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,607.82 : 710,162.98 = 285,168.97 : x
  2. Step 2: Convert to fraction form
    514,607.82/710,162.98 = 285,168.97/x
  3. Step 3: Cross multiply
    514,607.82x = 710,162.98 × 285,168.97
  4. Step 4: Simplify right side
    514,607.82x = 202,516,443,920.56
  5. Step 5: Solve for x
    x = 202,516,443,920.56/514,607.82
  6. Step 6: Final answer
    x = 393,535.50

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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.