Home / 667,358.40-1,001,365.65-312,311.10

Finding the Fourth Proportional to 667,358.40, 1,001,365.65 and 312,311.10

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Solution

The fourth proportional to 667,358.40, 1,001,365.65 and 312,311.10 is: 468,620.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,358.40 : 1,001,365.65 = 312,311.10 : x
  2. Step 2: Convert to fraction form
    667,358.40/1,001,365.65 = 312,311.10/x
  3. Step 3: Cross multiply
    667,358.40x = 1,001,365.65 × 312,311.10
  4. Step 4: Simplify right side
    667,358.40x = 312,737,607,653.72
  5. Step 5: Solve for x
    x = 312,737,607,653.72/667,358.40
  6. Step 6: Final answer
    x = 468,620.17

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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.