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Finding the Fourth Proportional to 478,052.91, 715,563.05 and 267,051.15

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Solution

The fourth proportional to 478,052.91, 715,563.05 and 267,051.15 is: 399,729.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,052.91 : 715,563.05 = 267,051.15 : x
  2. Step 2: Convert to fraction form
    478,052.91/715,563.05 = 267,051.15/x
  3. Step 3: Cross multiply
    478,052.91x = 715,563.05 × 267,051.15
  4. Step 4: Simplify right side
    478,052.91x = 191,091,934,064.75
  5. Step 5: Solve for x
    x = 191,091,934,064.75/478,052.91
  6. Step 6: Final answer
    x = 399,729.67

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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.