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Finding the Fourth Proportional to 545,330.92, 752,361.85 and 315,762.88

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Solution

The fourth proportional to 545,330.92, 752,361.85 and 315,762.88 is: 435,639.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,330.92 : 752,361.85 = 315,762.88 : x
  2. Step 2: Convert to fraction form
    545,330.92/752,361.85 = 315,762.88/x
  3. Step 3: Cross multiply
    545,330.92x = 752,361.85 × 315,762.88
  4. Step 4: Simplify right side
    545,330.92x = 237,567,944,558.13
  5. Step 5: Solve for x
    x = 237,567,944,558.13/545,330.92
  6. Step 6: Final answer
    x = 435,639.97

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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.