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Finding the Fourth Proportional to 486,527.70, 730,666.35 and 353,558.10

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Solution

The fourth proportional to 486,527.70, 730,666.35 and 353,558.10 is: 530,972.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,527.70 : 730,666.35 = 353,558.10 : x
  2. Step 2: Convert to fraction form
    486,527.70/730,666.35 = 353,558.10/x
  3. Step 3: Cross multiply
    486,527.70x = 730,666.35 × 353,558.10
  4. Step 4: Simplify right side
    486,527.70x = 258,333,006,439.94
  5. Step 5: Solve for x
    x = 258,333,006,439.94/486,527.70
  6. Step 6: Final answer
    x = 530,972.86

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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.