Home / 785,987.70-1,180,147.95-550,374.90

Finding the Fourth Proportional to 785,987.70, 1,180,147.95 and 550,374.90

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Solution

The fourth proportional to 785,987.70, 1,180,147.95 and 550,374.90 is: 826,379.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,987.70 : 1,180,147.95 = 550,374.90 : x
  2. Step 2: Convert to fraction form
    785,987.70/1,180,147.95 = 550,374.90/x
  3. Step 3: Cross multiply
    785,987.70x = 1,180,147.95 × 550,374.90
  4. Step 4: Simplify right side
    785,987.70x = 649,523,809,966.46
  5. Step 5: Solve for x
    x = 649,523,809,966.46/785,987.70
  6. Step 6: Final answer
    x = 826,379.10

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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.