Home / 753,125.80-1,129,332.30-437,679.40

Finding the Fourth Proportional to 753,125.80, 1,129,332.30 and 437,679.40

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Solution

The fourth proportional to 753,125.80, 1,129,332.30 and 437,679.40 is: 656,311.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,125.80 : 1,129,332.30 = 437,679.40 : x
  2. Step 2: Convert to fraction form
    753,125.80/1,129,332.30 = 437,679.40/x
  3. Step 3: Cross multiply
    753,125.80x = 1,129,332.30 × 437,679.40
  4. Step 4: Simplify right side
    753,125.80x = 494,285,483,464.62
  5. Step 5: Solve for x
    x = 494,285,483,464.62/753,125.80
  6. Step 6: Final answer
    x = 656,311.98

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1.5x scale

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.