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Finding the Fourth Proportional to 520,084.52, 717,730.85 and 293,730.02

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Solution

The fourth proportional to 520,084.52, 717,730.85 and 293,730.02 is: 405,355.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,084.52 : 717,730.85 = 293,730.02 : x
  2. Step 2: Convert to fraction form
    520,084.52/717,730.85 = 293,730.02/x
  3. Step 3: Cross multiply
    520,084.52x = 717,730.85 × 293,730.02
  4. Step 4: Simplify right side
    520,084.52x = 210,819,096,925.12
  5. Step 5: Solve for x
    x = 210,819,096,925.12/520,084.52
  6. Step 6: Final answer
    x = 405,355.45

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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.