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Finding the Fourth Proportional to 647,547.80, 970,932.90 and 332,619.80

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Solution

The fourth proportional to 647,547.80, 970,932.90 and 332,619.80 is: 498,729.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,547.80 : 970,932.90 = 332,619.80 : x
  2. Step 2: Convert to fraction form
    647,547.80/970,932.90 = 332,619.80/x
  3. Step 3: Cross multiply
    647,547.80x = 970,932.90 × 332,619.80
  4. Step 4: Simplify right side
    647,547.80x = 322,951,507,011.42
  5. Step 5: Solve for x
    x = 322,951,507,011.42/647,547.80
  6. Step 6: Final answer
    x = 498,729.99

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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.