Home / 871,398.45-1,307,098.67-272,362.77

Finding the Fourth Proportional to 871,398.45, 1,307,098.67 and 272,362.77

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Solution

The fourth proportional to 871,398.45, 1,307,098.67 and 272,362.77 is: 408,544.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,398.45 : 1,307,098.67 = 272,362.77 : x
  2. Step 2: Convert to fraction form
    871,398.45/1,307,098.67 = 272,362.77/x
  3. Step 3: Cross multiply
    871,398.45x = 1,307,098.67 × 272,362.77
  4. Step 4: Simplify right side
    871,398.45x = 356,005,013,062.70
  5. Step 5: Solve for x
    x = 356,005,013,062.70/871,398.45
  6. Step 6: Final answer
    x = 408,544.46

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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.