Home / 743,739.20-1,115,924.48-406,385.80

Finding the Fourth Proportional to 743,739.20, 1,115,924.48 and 406,385.80

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Solution

The fourth proportional to 743,739.20, 1,115,924.48 and 406,385.80 is: 609,751.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,739.20 : 1,115,924.48 = 406,385.80 : x
  2. Step 2: Convert to fraction form
    743,739.20/1,115,924.48 = 406,385.80/x
  3. Step 3: Cross multiply
    743,739.20x = 1,115,924.48 × 406,385.80
  4. Step 4: Simplify right side
    743,739.20x = 453,495,862,544.38
  5. Step 5: Solve for x
    x = 453,495,862,544.38/743,739.20
  6. Step 6: Final answer
    x = 609,751.19

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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.