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Finding the Fourth Proportional to 531,089.79, 796,966.85 and 215,546.70

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Solution

The fourth proportional to 531,089.79, 796,966.85 and 215,546.70 is: 323,454.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,089.79 : 796,966.85 = 215,546.70 : x
  2. Step 2: Convert to fraction form
    531,089.79/796,966.85 = 215,546.70/x
  3. Step 3: Cross multiply
    531,089.79x = 796,966.85 × 215,546.70
  4. Step 4: Simplify right side
    531,089.79x = 171,783,574,526.90
  5. Step 5: Solve for x
    x = 171,783,574,526.90/531,089.79
  6. Step 6: Final answer
    x = 323,454.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.