Home / 753,117.30-1,129,319.55-437,670.90

Finding the Fourth Proportional to 753,117.30, 1,129,319.55 and 437,670.90

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Solution

The fourth proportional to 753,117.30, 1,129,319.55 and 437,670.90 is: 656,299.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,117.30 : 1,129,319.55 = 437,670.90 : x
  2. Step 2: Convert to fraction form
    753,117.30/1,129,319.55 = 437,670.90/x
  3. Step 3: Cross multiply
    753,117.30x = 1,129,319.55 × 437,670.90
  4. Step 4: Simplify right side
    753,117.30x = 494,270,303,836.10
  5. Step 5: Solve for x
    x = 494,270,303,836.10/753,117.30
  6. Step 6: Final answer
    x = 656,299.23

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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.