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Finding the Fourth Proportional to 502,484.80, 752,920.80 and 265,518.40

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Solution

The fourth proportional to 502,484.80, 752,920.80 and 265,518.40 is: 397,851.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,484.80 : 752,920.80 = 265,518.40 : x
  2. Step 2: Convert to fraction form
    502,484.80/752,920.80 = 265,518.40/x
  3. Step 3: Cross multiply
    502,484.80x = 752,920.80 × 265,518.40
  4. Step 4: Simplify right side
    502,484.80x = 199,914,326,142.72
  5. Step 5: Solve for x
    x = 199,914,326,142.72/502,484.80
  6. Step 6: Final answer
    x = 397,851.49

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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.