Home / 648,030.80-972,046.20-363,429.20

Finding the Fourth Proportional to 648,030.80, 972,046.20 and 363,429.20

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Solution

The fourth proportional to 648,030.80, 972,046.20 and 363,429.20 is: 545,143.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,030.80 : 972,046.20 = 363,429.20 : x
  2. Step 2: Convert to fraction form
    648,030.80/972,046.20 = 363,429.20/x
  3. Step 3: Cross multiply
    648,030.80x = 972,046.20 × 363,429.20
  4. Step 4: Simplify right side
    648,030.80x = 353,269,972,829.04
  5. Step 5: Solve for x
    x = 353,269,972,829.04/648,030.80
  6. Step 6: Final answer
    x = 545,143.80

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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.