Home / 871,521.08-1,307,282.65-272,485.38

Finding the Fourth Proportional to 871,521.08, 1,307,282.65 and 272,485.38

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Solution

The fourth proportional to 871,521.08, 1,307,282.65 and 272,485.38 is: 408,728.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,521.08 : 1,307,282.65 = 272,485.38 : x
  2. Step 2: Convert to fraction form
    871,521.08/1,307,282.65 = 272,485.38/x
  3. Step 3: Cross multiply
    871,521.08x = 1,307,282.65 × 272,485.38
  4. Step 4: Simplify right side
    871,521.08x = 356,215,409,652.66
  5. Step 5: Solve for x
    x = 356,215,409,652.66/871,521.08
  6. Step 6: Final answer
    x = 408,728.39

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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.