Home / 671,849.28-1,007,810.64-272,430.72

Finding the Fourth Proportional to 671,849.28, 1,007,810.64 and 272,430.72

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Solution

The fourth proportional to 671,849.28, 1,007,810.64 and 272,430.72 is: 408,660.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,849.28 : 1,007,810.64 = 272,430.72 : x
  2. Step 2: Convert to fraction form
    671,849.28/1,007,810.64 = 272,430.72/x
  3. Step 3: Cross multiply
    671,849.28x = 1,007,810.64 × 272,430.72
  4. Step 4: Simplify right side
    671,849.28x = 274,558,578,278.86
  5. Step 5: Solve for x
    x = 274,558,578,278.86/671,849.28
  6. Step 6: Final answer
    x = 408,660.97

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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.