Home / 1,186,342.20-1,775,366.10-1,086,809.40

Finding the Fourth Proportional to 1,186,342.20, 1,775,366.10 and 1,086,809.40

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Solution

The fourth proportional to 1,186,342.20, 1,775,366.10 and 1,086,809.40 is: 1,626,414.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,342.20 : 1,775,366.10 = 1,086,809.40 : x
  2. Step 2: Convert to fraction form
    1,186,342.20/1,775,366.10 = 1,086,809.40/x
  3. Step 3: Cross multiply
    1,186,342.20x = 1,775,366.10 × 1,086,809.40
  4. Step 4: Simplify right side
    1,186,342.20x = 1,929,484,565,921.34
  5. Step 5: Solve for x
    x = 1,929,484,565,921.34/1,186,342.20
  6. Step 6: Final answer
    x = 1,626,414.85

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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.