Home / 478,113.75-659,599.25-284,482.85

Finding the Fourth Proportional to 478,113.75, 659,599.25 and 284,482.85

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Solution

The fourth proportional to 478,113.75, 659,599.25 and 284,482.85 is: 392,468.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,113.75 : 659,599.25 = 284,482.85 : x
  2. Step 2: Convert to fraction form
    478,113.75/659,599.25 = 284,482.85/x
  3. Step 3: Cross multiply
    478,113.75x = 659,599.25 × 284,482.85
  4. Step 4: Simplify right side
    478,113.75x = 187,644,669,777.45
  5. Step 5: Solve for x
    x = 187,644,669,777.45/478,113.75
  6. Step 6: Final answer
    x = 392,468.67

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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.