Home / 871,220.34-1,307,092.95-272,157.30

Finding the Fourth Proportional to 871,220.34, 1,307,092.95 and 272,157.30

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Solution

The fourth proportional to 871,220.34, 1,307,092.95 and 272,157.30 is: 408,317.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,220.34 : 1,307,092.95 = 272,157.30 : x
  2. Step 2: Convert to fraction form
    871,220.34/1,307,092.95 = 272,157.30/x
  3. Step 3: Cross multiply
    871,220.34x = 1,307,092.95 × 272,157.30
  4. Step 4: Simplify right side
    871,220.34x = 355,734,888,121.04
  5. Step 5: Solve for x
    x = 355,734,888,121.04/871,220.34
  6. Step 6: Final answer
    x = 408,317.93

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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.