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Finding the Fourth Proportional to 871,709.22, 1,307,774.61 and 303,008.22

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Solution

The fourth proportional to 871,709.22, 1,307,774.61 and 303,008.22 is: 454,585.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,709.22 : 1,307,774.61 = 303,008.22 : x
  2. Step 2: Convert to fraction form
    871,709.22/1,307,774.61 = 303,008.22/x
  3. Step 3: Cross multiply
    871,709.22x = 1,307,774.61 × 303,008.22
  4. Step 4: Simplify right side
    871,709.22x = 396,266,456,737.29
  5. Step 5: Solve for x
    x = 396,266,456,737.29/871,709.22
  6. Step 6: Final answer
    x = 454,585.60

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1.5x scale

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.