Home / 1,001,400.66-1,381,988.25-571,818.78

Finding the Fourth Proportional to 1,001,400.66, 1,381,988.25 and 571,818.78

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Solution

The fourth proportional to 1,001,400.66, 1,381,988.25 and 571,818.78 is: 789,141.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001,400.66 : 1,381,988.25 = 571,818.78 : x
  2. Step 2: Convert to fraction form
    1,001,400.66/1,381,988.25 = 571,818.78/x
  3. Step 3: Cross multiply
    1,001,400.66x = 1,381,988.25 × 571,818.78
  4. Step 4: Simplify right side
    1,001,400.66x = 790,246,835,089.34
  5. Step 5: Solve for x
    x = 790,246,835,089.34/1,001,400.66
  6. Step 6: Final answer
    x = 789,141.52

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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.