Home / 1,425,455.55-2,138,205.20-478,834.47

Finding the Fourth Proportional to 1,425,455.55, 2,138,205.20 and 478,834.47

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Solution

The fourth proportional to 1,425,455.55, 2,138,205.20 and 478,834.47 is: 718,259.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,455.55 : 2,138,205.20 = 478,834.47 : x
  2. Step 2: Convert to fraction form
    1,425,455.55/2,138,205.20 = 478,834.47/x
  3. Step 3: Cross multiply
    1,425,455.55x = 2,138,205.20 × 478,834.47
  4. Step 4: Simplify right side
    1,425,455.55x = 1,023,846,351,299.07
  5. Step 5: Solve for x
    x = 1,023,846,351,299.07/1,425,455.55
  6. Step 6: Final answer
    x = 718,259.05

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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.