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Finding the Fourth Proportional to 630,694.35, 871,082.24 and 459,375.57

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Solution

The fourth proportional to 630,694.35, 871,082.24 and 459,375.57 is: 634,465.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,694.35 : 871,082.24 = 459,375.57 : x
  2. Step 2: Convert to fraction form
    630,694.35/871,082.24 = 459,375.57/x
  3. Step 3: Cross multiply
    630,694.35x = 871,082.24 × 459,375.57
  4. Step 4: Simplify right side
    630,694.35x = 400,153,898,220.00
  5. Step 5: Solve for x
    x = 400,153,898,220.00/630,694.35
  6. Step 6: Final answer
    x = 634,465.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.