Home / 924,814.50-1,387,221.78-259,966.50

Finding the Fourth Proportional to 924,814.50, 1,387,221.78 and 259,966.50

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Solution

The fourth proportional to 924,814.50, 1,387,221.78 and 259,966.50 is: 389,949.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    924,814.50 : 1,387,221.78 = 259,966.50 : x
  2. Step 2: Convert to fraction form
    924,814.50/1,387,221.78 = 259,966.50/x
  3. Step 3: Cross multiply
    924,814.50x = 1,387,221.78 × 259,966.50
  4. Step 4: Simplify right side
    924,814.50x = 360,631,190,870.37
  5. Step 5: Solve for x
    x = 360,631,190,870.37/924,814.50
  6. Step 6: Final answer
    x = 389,949.76

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Double scale
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Similar ratio
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1.5x scale

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.