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Finding the Fourth Proportional to 720,350.88, 1,080,572.40 and 277,118.88

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Solution

The fourth proportional to 720,350.88, 1,080,572.40 and 277,118.88 is: 415,696.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,350.88 : 1,080,572.40 = 277,118.88 : x
  2. Step 2: Convert to fraction form
    720,350.88/1,080,572.40 = 277,118.88/x
  3. Step 3: Cross multiply
    720,350.88x = 1,080,572.40 × 277,118.88
  4. Step 4: Simplify right side
    720,350.88x = 299,447,013,246.91
  5. Step 5: Solve for x
    x = 299,447,013,246.91/720,350.88
  6. Step 6: Final answer
    x = 415,696.05

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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.