Home / 924,907.20-1,387,360.80-259,972.80

Finding the Fourth Proportional to 924,907.20, 1,387,360.80 and 259,972.80

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Solution

The fourth proportional to 924,907.20, 1,387,360.80 and 259,972.80 is: 389,959.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    924,907.20 : 1,387,360.80 = 259,972.80 : x
  2. Step 2: Convert to fraction form
    924,907.20/1,387,360.80 = 259,972.80/x
  3. Step 3: Cross multiply
    924,907.20x = 1,387,360.80 × 259,972.80
  4. Step 4: Simplify right side
    924,907.20x = 360,676,071,786.24
  5. Step 5: Solve for x
    x = 360,676,071,786.24/924,907.20
  6. Step 6: Final answer
    x = 389,959.20

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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.