Home / 1,115,065.16-1,671,663.90-777,114.44

Finding the Fourth Proportional to 1,115,065.16, 1,671,663.90 and 777,114.44

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Solution

The fourth proportional to 1,115,065.16, 1,671,663.90 and 777,114.44 is: 1,165,020.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,065.16 : 1,671,663.90 = 777,114.44 : x
  2. Step 2: Convert to fraction form
    1,115,065.16/1,671,663.90 = 777,114.44/x
  3. Step 3: Cross multiply
    1,115,065.16x = 1,671,663.90 × 777,114.44
  4. Step 4: Simplify right side
    1,115,065.16x = 1,299,074,155,516.72
  5. Step 5: Solve for x
    x = 1,299,074,155,516.72/1,115,065.16
  6. Step 6: Final answer
    x = 1,165,020.85

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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.