Home / 924,812.40-1,387,218.60-259,964.40

Finding the Fourth Proportional to 924,812.40, 1,387,218.60 and 259,964.40

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Solution

The fourth proportional to 924,812.40, 1,387,218.60 and 259,964.40 is: 389,946.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    924,812.40 : 1,387,218.60 = 259,964.40 : x
  2. Step 2: Convert to fraction form
    924,812.40/1,387,218.60 = 259,964.40/x
  3. Step 3: Cross multiply
    924,812.40x = 1,387,218.60 × 259,964.40
  4. Step 4: Simplify right side
    924,812.40x = 360,627,451,017.84
  5. Step 5: Solve for x
    x = 360,627,451,017.84/924,812.40
  6. Step 6: Final answer
    x = 389,946.60

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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.