Home / 1,113,780.10-1,670,670.15-777,200.80

Finding the Fourth Proportional to 1,113,780.10, 1,670,670.15 and 777,200.80

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Solution

The fourth proportional to 1,113,780.10, 1,670,670.15 and 777,200.80 is: 1,165,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,780.10 : 1,670,670.15 = 777,200.80 : x
  2. Step 2: Convert to fraction form
    1,113,780.10/1,670,670.15 = 777,200.80/x
  3. Step 3: Cross multiply
    1,113,780.10x = 1,670,670.15 × 777,200.80
  4. Step 4: Simplify right side
    1,113,780.10x = 1,298,446,177,116.12
  5. Step 5: Solve for x
    x = 1,298,446,177,116.12/1,113,780.10
  6. Step 6: Final answer
    x = 1,165,801.20

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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.