Home / 918,309.13-1,375,172.81-580,330.15

Finding the Fourth Proportional to 918,309.13, 1,375,172.81 and 580,330.15

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Solution

The fourth proportional to 918,309.13, 1,375,172.81 and 580,330.15 is: 869,047.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,309.13 : 1,375,172.81 = 580,330.15 : x
  2. Step 2: Convert to fraction form
    918,309.13/1,375,172.81 = 580,330.15/x
  3. Step 3: Cross multiply
    918,309.13x = 1,375,172.81 × 580,330.15
  4. Step 4: Simplify right side
    918,309.13x = 798,054,240,201.57
  5. Step 5: Solve for x
    x = 798,054,240,201.57/918,309.13
  6. Step 6: Final answer
    x = 869,047.49

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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.