Home / 1,001,398.41-1,381,985.15-571,816.53

Finding the Fourth Proportional to 1,001,398.41, 1,381,985.15 and 571,816.53

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Solution

The fourth proportional to 1,001,398.41, 1,381,985.15 and 571,816.53 is: 789,138.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001,398.41 : 1,381,985.15 = 571,816.53 : x
  2. Step 2: Convert to fraction form
    1,001,398.41/1,381,985.15 = 571,816.53/x
  3. Step 3: Cross multiply
    1,001,398.41x = 1,381,985.15 × 571,816.53
  4. Step 4: Simplify right side
    1,001,398.41x = 790,241,950,125.45
  5. Step 5: Solve for x
    x = 790,241,950,125.45/1,001,398.41
  6. Step 6: Final answer
    x = 789,138.41

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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.