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Finding the Fourth Proportional to 486,726.72, 730,277.01 and 342,770.69

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Solution

The fourth proportional to 486,726.72, 730,277.01 and 342,770.69 is: 514,287.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,726.72 : 730,277.01 = 342,770.69 : x
  2. Step 2: Convert to fraction form
    486,726.72/730,277.01 = 342,770.69/x
  3. Step 3: Cross multiply
    486,726.72x = 730,277.01 × 342,770.69
  4. Step 4: Simplify right side
    486,726.72x = 250,317,550,957.45
  5. Step 5: Solve for x
    x = 250,317,550,957.45/486,726.72
  6. Step 6: Final answer
    x = 514,287.67

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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.