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Finding the Fourth Proportional to 545,757.52, 817,418.40 and 418,460.72

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Solution

The fourth proportional to 545,757.52, 817,418.40 and 418,460.72 is: 626,757.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,757.52 : 817,418.40 = 418,460.72 : x
  2. Step 2: Convert to fraction form
    545,757.52/817,418.40 = 418,460.72/x
  3. Step 3: Cross multiply
    545,757.52x = 817,418.40 × 418,460.72
  4. Step 4: Simplify right side
    545,757.52x = 342,057,492,205.25
  5. Step 5: Solve for x
    x = 342,057,492,205.25/545,757.52
  6. Step 6: Final answer
    x = 626,757.27

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1.5x scale

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.