Home / 1,129,108.50-1,693,925.19-381,154.50

Finding the Fourth Proportional to 1,129,108.50, 1,693,925.19 and 381,154.50

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Solution

The fourth proportional to 1,129,108.50, 1,693,925.19 and 381,154.50 is: 571,820.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,108.50 : 1,693,925.19 = 381,154.50 : x
  2. Step 2: Convert to fraction form
    1,129,108.50/1,693,925.19 = 381,154.50/x
  3. Step 3: Cross multiply
    1,129,108.50x = 1,693,925.19 × 381,154.50
  4. Step 4: Simplify right side
    1,129,108.50x = 645,647,208,831.86
  5. Step 5: Solve for x
    x = 645,647,208,831.86/1,129,108.50
  6. Step 6: Final answer
    x = 571,820.34

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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.