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Finding the Fourth Proportional to 648,052.80, 972,079.20 and 585,067.20

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Solution

The fourth proportional to 648,052.80, 972,079.20 and 585,067.20 is: 877,600.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,052.80 : 972,079.20 = 585,067.20 : x
  2. Step 2: Convert to fraction form
    648,052.80/972,079.20 = 585,067.20/x
  3. Step 3: Cross multiply
    648,052.80x = 972,079.20 × 585,067.20
  4. Step 4: Simplify right side
    648,052.80x = 568,731,655,722.24
  5. Step 5: Solve for x
    x = 568,731,655,722.24/648,052.80
  6. Step 6: Final answer
    x = 877,600.80

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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.