Home / 1,685,915.20-2,529,200.85-487,876.60

Finding the Fourth Proportional to 1,685,915.20, 2,529,200.85 and 487,876.60

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Solution

The fourth proportional to 1,685,915.20, 2,529,200.85 and 487,876.60 is: 731,909.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685,915.20 : 2,529,200.85 = 487,876.60 : x
  2. Step 2: Convert to fraction form
    1,685,915.20/2,529,200.85 = 487,876.60/x
  3. Step 3: Cross multiply
    1,685,915.20x = 2,529,200.85 × 487,876.60
  4. Step 4: Simplify right side
    1,685,915.20x = 1,233,937,911,415.11
  5. Step 5: Solve for x
    x = 1,233,937,911,415.11/1,685,915.20
  6. Step 6: Final answer
    x = 731,909.83

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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.