Home / 753,158.86-1,129,747.47-220,690.66

Finding the Fourth Proportional to 753,158.86, 1,129,747.47 and 220,690.66

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Solution

The fourth proportional to 753,158.86, 1,129,747.47 and 220,690.66 is: 331,038.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,158.86 : 1,129,747.47 = 220,690.66 : x
  2. Step 2: Convert to fraction form
    753,158.86/1,129,747.47 = 220,690.66/x
  3. Step 3: Cross multiply
    753,158.86x = 1,129,747.47 × 220,690.66
  4. Step 4: Simplify right side
    753,158.86x = 249,324,714,787.63
  5. Step 5: Solve for x
    x = 249,324,714,787.63/753,158.86
  6. Step 6: Final answer
    x = 331,038.68

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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.