Home / 527,821.02-791,720.46-128,464.02

Finding the Fourth Proportional to 527,821.02, 791,720.46 and 128,464.02

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Solution

The fourth proportional to 527,821.02, 791,720.46 and 128,464.02 is: 192,693.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,821.02 : 791,720.46 = 128,464.02 : x
  2. Step 2: Convert to fraction form
    527,821.02/791,720.46 = 128,464.02/x
  3. Step 3: Cross multiply
    527,821.02x = 791,720.46 × 128,464.02
  4. Step 4: Simplify right side
    527,821.02x = 101,707,593,007.85
  5. Step 5: Solve for x
    x = 101,707,593,007.85/527,821.02
  6. Step 6: Final answer
    x = 192,693.34

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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.