Home / 871,772.61-1,307,289.86-272,572.89

Finding the Fourth Proportional to 871,772.61, 1,307,289.86 and 272,572.89

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Solution

The fourth proportional to 871,772.61, 1,307,289.86 and 272,572.89 is: 408,743.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,772.61 : 1,307,289.86 = 272,572.89 : x
  2. Step 2: Convert to fraction form
    871,772.61/1,307,289.86 = 272,572.89/x
  3. Step 3: Cross multiply
    871,772.61x = 1,307,289.86 × 272,572.89
  4. Step 4: Simplify right side
    871,772.61x = 356,331,775,207.90
  5. Step 5: Solve for x
    x = 356,331,775,207.90/871,772.61
  6. Step 6: Final answer
    x = 408,743.94

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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.