Home / 671,838.38-1,007,751.31-272,384.20

Finding the Fourth Proportional to 671,838.38, 1,007,751.31 and 272,384.20

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Solution

The fourth proportional to 671,838.38, 1,007,751.31 and 272,384.20 is: 408,573.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,838.38 : 1,007,751.31 = 272,384.20 : x
  2. Step 2: Convert to fraction form
    671,838.38/1,007,751.31 = 272,384.20/x
  3. Step 3: Cross multiply
    671,838.38x = 1,007,751.31 × 272,384.20
  4. Step 4: Simplify right side
    671,838.38x = 274,495,533,011.38
  5. Step 5: Solve for x
    x = 274,495,533,011.38/671,838.38
  6. Step 6: Final answer
    x = 408,573.76

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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.