Home / 1,107,402.40-1,657,604.40-869,456.80

Finding the Fourth Proportional to 1,107,402.40, 1,657,604.40 and 869,456.80

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Solution

The fourth proportional to 1,107,402.40, 1,657,604.40 and 869,456.80 is: 1,301,437.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,402.40 : 1,657,604.40 = 869,456.80 : x
  2. Step 2: Convert to fraction form
    1,107,402.40/1,657,604.40 = 869,456.80/x
  3. Step 3: Cross multiply
    1,107,402.40x = 1,657,604.40 × 869,456.80
  4. Step 4: Simplify right side
    1,107,402.40x = 1,441,215,417,289.92
  5. Step 5: Solve for x
    x = 1,441,215,417,289.92/1,107,402.40
  6. Step 6: Final answer
    x = 1,301,437.87

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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.