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Finding the Fourth Proportional to 540,578.88, 746,117.28 and 314,354.88

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Solution

The fourth proportional to 540,578.88, 746,117.28 and 314,354.88 is: 433,878.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,578.88 : 746,117.28 = 314,354.88 : x
  2. Step 2: Convert to fraction form
    540,578.88/746,117.28 = 314,354.88/x
  3. Step 3: Cross multiply
    540,578.88x = 746,117.28 × 314,354.88
  4. Step 4: Simplify right side
    540,578.88x = 234,545,608,020.33
  5. Step 5: Solve for x
    x = 234,545,608,020.33/540,578.88
  6. Step 6: Final answer
    x = 433,878.60

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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.