Home / 779,324.60-1,168,986.90-639,241.40

Finding the Fourth Proportional to 779,324.60, 1,168,986.90 and 639,241.40

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Solution

The fourth proportional to 779,324.60, 1,168,986.90 and 639,241.40 is: 958,862.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,324.60 : 1,168,986.90 = 639,241.40 : x
  2. Step 2: Convert to fraction form
    779,324.60/1,168,986.90 = 639,241.40/x
  3. Step 3: Cross multiply
    779,324.60x = 1,168,986.90 × 639,241.40
  4. Step 4: Simplify right side
    779,324.60x = 747,264,822,537.66
  5. Step 5: Solve for x
    x = 747,264,822,537.66/779,324.60
  6. Step 6: Final answer
    x = 958,862.10

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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.