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Finding the Fourth Proportional to 972,178.80, 1,457,101.80 and 498,620.40

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Solution

The fourth proportional to 972,178.80, 1,457,101.80 and 498,620.40 is: 747,332.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,178.80 : 1,457,101.80 = 498,620.40 : x
  2. Step 2: Convert to fraction form
    972,178.80/1,457,101.80 = 498,620.40/x
  3. Step 3: Cross multiply
    972,178.80x = 1,457,101.80 × 498,620.40
  4. Step 4: Simplify right side
    972,178.80x = 726,540,682,356.72
  5. Step 5: Solve for x
    x = 726,540,682,356.72/972,178.80
  6. Step 6: Final answer
    x = 747,332.37

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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.