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Finding the Fourth Proportional to 545,034.38, 751,367.93 and 383,387.72

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Solution

The fourth proportional to 545,034.38, 751,367.93 and 383,387.72 is: 528,526.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,034.38 : 751,367.93 = 383,387.72 : x
  2. Step 2: Convert to fraction form
    545,034.38/751,367.93 = 383,387.72/x
  3. Step 3: Cross multiply
    545,034.38x = 751,367.93 × 383,387.72
  4. Step 4: Simplify right side
    545,034.38x = 288,065,231,890.04
  5. Step 5: Solve for x
    x = 288,065,231,890.04/545,034.38
  6. Step 6: Final answer
    x = 528,526.72

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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.