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Finding the Fourth Proportional to 480,020.80, 720,031.20 and 471,726.40

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Solution

The fourth proportional to 480,020.80, 720,031.20 and 471,726.40 is: 707,589.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,020.80 : 720,031.20 = 471,726.40 : x
  2. Step 2: Convert to fraction form
    480,020.80/720,031.20 = 471,726.40/x
  3. Step 3: Cross multiply
    480,020.80x = 720,031.20 × 471,726.40
  4. Step 4: Simplify right side
    480,020.80x = 339,657,725,863.68
  5. Step 5: Solve for x
    x = 339,657,725,863.68/480,020.80
  6. Step 6: Final answer
    x = 707,589.60

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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.