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Finding the Fourth Proportional to 480,026.20, 720,039.30 and 403,043.80

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Solution

The fourth proportional to 480,026.20, 720,039.30 and 403,043.80 is: 604,565.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,026.20 : 720,039.30 = 403,043.80 : x
  2. Step 2: Convert to fraction form
    480,026.20/720,039.30 = 403,043.80/x
  3. Step 3: Cross multiply
    480,026.20x = 720,039.30 × 403,043.80
  4. Step 4: Simplify right side
    480,026.20x = 290,207,375,621.34
  5. Step 5: Solve for x
    x = 290,207,375,621.34/480,026.20
  6. Step 6: Final answer
    x = 604,565.70

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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.