Home / 807,423.50-1,211,372.10-238,819.60

Finding the Fourth Proportional to 807,423.50, 1,211,372.10 and 238,819.60

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Solution

The fourth proportional to 807,423.50, 1,211,372.10 and 238,819.60 is: 358,299.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,423.50 : 1,211,372.10 = 238,819.60 : x
  2. Step 2: Convert to fraction form
    807,423.50/1,211,372.10 = 238,819.60/x
  3. Step 3: Cross multiply
    807,423.50x = 1,211,372.10 × 238,819.60
  4. Step 4: Simplify right side
    807,423.50x = 289,299,400,373.16
  5. Step 5: Solve for x
    x = 289,299,400,373.16/807,423.50
  6. Step 6: Final answer
    x = 358,299.46

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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.