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Finding the Fourth Proportional to 486,528.70, 730,667.85 and 353,559.10

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Solution

The fourth proportional to 486,528.70, 730,667.85 and 353,559.10 is: 530,974.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,528.70 : 730,667.85 = 353,559.10 : x
  2. Step 2: Convert to fraction form
    486,528.70/730,667.85 = 353,559.10/x
  3. Step 3: Cross multiply
    486,528.70x = 730,667.85 × 353,559.10
  4. Step 4: Simplify right side
    486,528.70x = 258,334,267,444.94
  5. Step 5: Solve for x
    x = 258,334,267,444.94/486,528.70
  6. Step 6: Final answer
    x = 530,974.36

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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.