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Finding the Fourth Proportional to 487,698.96, 731,154.76 and 448,332.96

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Solution

The fourth proportional to 487,698.96, 731,154.76 and 448,332.96 is: 672,137.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,698.96 : 731,154.76 = 448,332.96 : x
  2. Step 2: Convert to fraction form
    487,698.96/731,154.76 = 448,332.96/x
  3. Step 3: Cross multiply
    487,698.96x = 731,154.76 × 448,332.96
  4. Step 4: Simplify right side
    487,698.96x = 327,800,777,768.89
  5. Step 5: Solve for x
    x = 327,800,777,768.89/487,698.96
  6. Step 6: Final answer
    x = 672,137.54

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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.