Home / 1,291,469.04-1,781,485.11-807,193.71

Finding the Fourth Proportional to 1,291,469.04, 1,781,485.11 and 807,193.71

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Solution

The fourth proportional to 1,291,469.04, 1,781,485.11 and 807,193.71 is: 1,113,463.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,469.04 : 1,781,485.11 = 807,193.71 : x
  2. Step 2: Convert to fraction form
    1,291,469.04/1,781,485.11 = 807,193.71/x
  3. Step 3: Cross multiply
    1,291,469.04x = 1,781,485.11 × 807,193.71
  4. Step 4: Simplify right side
    1,291,469.04x = 1,438,003,575,250.66
  5. Step 5: Solve for x
    x = 1,438,003,575,250.66/1,291,469.04
  6. Step 6: Final answer
    x = 1,113,463.45

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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.