Home / 672,023.79-1,007,685.70-316,942.47

Finding the Fourth Proportional to 672,023.79, 1,007,685.70 and 316,942.47

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Solution

The fourth proportional to 672,023.79, 1,007,685.70 and 316,942.47 is: 475,248.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,023.79 : 1,007,685.70 = 316,942.47 : x
  2. Step 2: Convert to fraction form
    672,023.79/1,007,685.70 = 316,942.47/x
  3. Step 3: Cross multiply
    672,023.79x = 1,007,685.70 × 316,942.47
  4. Step 4: Simplify right side
    672,023.79x = 319,378,393,949.32
  5. Step 5: Solve for x
    x = 319,378,393,949.32/672,023.79
  6. Step 6: Final answer
    x = 475,248.64

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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.