Home / 410,784.60-615,140.10-269,779.80

Finding the Fourth Proportional to 410,784.60, 615,140.10 and 269,779.80

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Solution

The fourth proportional to 410,784.60, 615,140.10 and 269,779.80 is: 403,988.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,784.60 : 615,140.10 = 269,779.80 : x
  2. Step 2: Convert to fraction form
    410,784.60/615,140.10 = 269,779.80/x
  3. Step 3: Cross multiply
    410,784.60x = 615,140.10 × 269,779.80
  4. Step 4: Simplify right side
    410,784.60x = 165,952,373,149.98
  5. Step 5: Solve for x
    x = 165,952,373,149.98/410,784.60
  6. Step 6: Final answer
    x = 403,988.79

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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.