Home / 924,800.20-1,387,200.30-259,865.80

Finding the Fourth Proportional to 924,800.20, 1,387,200.30 and 259,865.80

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Solution

The fourth proportional to 924,800.20, 1,387,200.30 and 259,865.80 is: 389,798.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    924,800.20 : 1,387,200.30 = 259,865.80 : x
  2. Step 2: Convert to fraction form
    924,800.20/1,387,200.30 = 259,865.80/x
  3. Step 3: Cross multiply
    924,800.20x = 1,387,200.30 × 259,865.80
  4. Step 4: Simplify right side
    924,800.20x = 360,485,915,719.74
  5. Step 5: Solve for x
    x = 360,485,915,719.74/924,800.20
  6. Step 6: Final answer
    x = 389,798.70

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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.