Home / 671,439.42-1,007,159.13-272,005.74

Finding the Fourth Proportional to 671,439.42, 1,007,159.13 and 272,005.74

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Solution

The fourth proportional to 671,439.42, 1,007,159.13 and 272,005.74 is: 408,008.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,439.42 : 1,007,159.13 = 272,005.74 : x
  2. Step 2: Convert to fraction form
    671,439.42/1,007,159.13 = 272,005.74/x
  3. Step 3: Cross multiply
    671,439.42x = 1,007,159.13 × 272,005.74
  4. Step 4: Simplify right side
    671,439.42x = 273,953,064,453.41
  5. Step 5: Solve for x
    x = 273,953,064,453.41/671,439.42
  6. Step 6: Final answer
    x = 408,008.61

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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.