Home / 1,291,358.70-1,781,593.67-807,740.10

Finding the Fourth Proportional to 1,291,358.70, 1,781,593.67 and 807,740.10

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Solution

The fourth proportional to 1,291,358.70, 1,781,593.67 and 807,740.10 is: 1,114,380.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,358.70 : 1,781,593.67 = 807,740.10 : x
  2. Step 2: Convert to fraction form
    1,291,358.70/1,781,593.67 = 807,740.10/x
  3. Step 3: Cross multiply
    1,291,358.70x = 1,781,593.67 × 807,740.10
  4. Step 4: Simplify right side
    1,291,358.70x = 1,439,064,645,126.47
  5. Step 5: Solve for x
    x = 1,439,064,645,126.47/1,291,358.70
  6. Step 6: Final answer
    x = 1,114,380.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.