Home / 755,246.40-1,132,869.60-419,323.20

Finding the Fourth Proportional to 755,246.40, 1,132,869.60 and 419,323.20

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Solution

The fourth proportional to 755,246.40, 1,132,869.60 and 419,323.20 is: 628,984.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,246.40 : 1,132,869.60 = 419,323.20 : x
  2. Step 2: Convert to fraction form
    755,246.40/1,132,869.60 = 419,323.20/x
  3. Step 3: Cross multiply
    755,246.40x = 1,132,869.60 × 419,323.20
  4. Step 4: Simplify right side
    755,246.40x = 475,038,505,854.72
  5. Step 5: Solve for x
    x = 475,038,505,854.72/755,246.40
  6. Step 6: Final answer
    x = 628,984.80

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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.