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Finding the Fourth Proportional to 648,006.80, 972,010.20 and 480,045.20

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Solution

The fourth proportional to 648,006.80, 972,010.20 and 480,045.20 is: 720,067.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,006.80 : 972,010.20 = 480,045.20 : x
  2. Step 2: Convert to fraction form
    648,006.80/972,010.20 = 480,045.20/x
  3. Step 3: Cross multiply
    648,006.80x = 972,010.20 × 480,045.20
  4. Step 4: Simplify right side
    648,006.80x = 466,608,830,861.04
  5. Step 5: Solve for x
    x = 466,608,830,861.04/648,006.80
  6. Step 6: Final answer
    x = 720,067.80

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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.