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Finding the Fourth Proportional to 545,328.66, 752,358.77 and 315,760.62

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Solution

The fourth proportional to 545,328.66, 752,358.77 and 315,760.62 is: 435,636.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,328.66 : 752,358.77 = 315,760.62 : x
  2. Step 2: Convert to fraction form
    545,328.66/752,358.77 = 315,760.62/x
  3. Step 3: Cross multiply
    545,328.66x = 752,358.77 × 315,760.62
  4. Step 4: Simplify right side
    545,328.66x = 237,565,266,337.04
  5. Step 5: Solve for x
    x = 237,565,266,337.04/545,328.66
  6. Step 6: Final answer
    x = 435,636.87

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1.5x scale

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.