Home / 680,287.28-1,020,389.61-253,740.88

Finding the Fourth Proportional to 680,287.28, 1,020,389.61 and 253,740.88

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Solution

The fourth proportional to 680,287.28, 1,020,389.61 and 253,740.88 is: 380,595.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,287.28 : 1,020,389.61 = 253,740.88 : x
  2. Step 2: Convert to fraction form
    680,287.28/1,020,389.61 = 253,740.88/x
  3. Step 3: Cross multiply
    680,287.28x = 1,020,389.61 × 253,740.88
  4. Step 4: Simplify right side
    680,287.28x = 258,914,552,482.31
  5. Step 5: Solve for x
    x = 258,914,552,482.31/680,287.28
  6. Step 6: Final answer
    x = 380,595.90

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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.