Home / 803,487.20-1,206,008.40-488,559.20

Finding the Fourth Proportional to 803,487.20, 1,206,008.40 and 488,559.20

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Solution

The fourth proportional to 803,487.20, 1,206,008.40 and 488,559.20 is: 733,311.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,487.20 : 1,206,008.40 = 488,559.20 : x
  2. Step 2: Convert to fraction form
    803,487.20/1,206,008.40 = 488,559.20/x
  3. Step 3: Cross multiply
    803,487.20x = 1,206,008.40 × 488,559.20
  4. Step 4: Simplify right side
    803,487.20x = 589,206,499,097.28
  5. Step 5: Solve for x
    x = 589,206,499,097.28/803,487.20
  6. Step 6: Final answer
    x = 733,311.62

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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.