Home / 871,221.34-1,307,094.45-272,158.30

Finding the Fourth Proportional to 871,221.34, 1,307,094.45 and 272,158.30

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Solution

The fourth proportional to 871,221.34, 1,307,094.45 and 272,158.30 is: 408,319.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,221.34 : 1,307,094.45 = 272,158.30 : x
  2. Step 2: Convert to fraction form
    871,221.34/1,307,094.45 = 272,158.30/x
  3. Step 3: Cross multiply
    871,221.34x = 1,307,094.45 × 272,158.30
  4. Step 4: Simplify right side
    871,221.34x = 355,736,603,451.44
  5. Step 5: Solve for x
    x = 355,736,603,451.44/871,221.34
  6. Step 6: Final answer
    x = 408,319.43

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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.