Home / 918,308.13-1,375,171.31-580,329.15

Finding the Fourth Proportional to 918,308.13, 1,375,171.31 and 580,329.15

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Solution

The fourth proportional to 918,308.13, 1,375,171.31 and 580,329.15 is: 869,045.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,308.13 : 1,375,171.31 = 580,329.15 : x
  2. Step 2: Convert to fraction form
    918,308.13/1,375,171.31 = 580,329.15/x
  3. Step 3: Cross multiply
    918,308.13x = 1,375,171.31 × 580,329.15
  4. Step 4: Simplify right side
    918,308.13x = 798,051,994,535.04
  5. Step 5: Solve for x
    x = 798,051,994,535.04/918,308.13
  6. Step 6: Final answer
    x = 869,045.99

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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.