Home / 782,111.20-1,175,499.60-768,114.40

Finding the Fourth Proportional to 782,111.20, 1,175,499.60 and 768,114.40

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Solution

The fourth proportional to 782,111.20, 1,175,499.60 and 768,114.40 is: 1,154,462.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,111.20 : 1,175,499.60 = 768,114.40 : x
  2. Step 2: Convert to fraction form
    782,111.20/1,175,499.60 = 768,114.40/x
  3. Step 3: Cross multiply
    782,111.20x = 1,175,499.60 × 768,114.40
  4. Step 4: Simplify right side
    782,111.20x = 902,918,169,954.24
  5. Step 5: Solve for x
    x = 902,918,169,954.24/782,111.20
  6. Step 6: Final answer
    x = 1,154,462.65

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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.