Home / 865,648.48-1,298,064.05-505,922.53

Finding the Fourth Proportional to 865,648.48, 1,298,064.05 and 505,922.53

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Solution

The fourth proportional to 865,648.48, 1,298,064.05 and 505,922.53 is: 758,644.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,648.48 : 1,298,064.05 = 505,922.53 : x
  2. Step 2: Convert to fraction form
    865,648.48/1,298,064.05 = 505,922.53/x
  3. Step 3: Cross multiply
    865,648.48x = 1,298,064.05 × 505,922.53
  4. Step 4: Simplify right side
    865,648.48x = 656,719,842,503.27
  5. Step 5: Solve for x
    x = 656,719,842,503.27/865,648.48
  6. Step 6: Final answer
    x = 758,644.95

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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.