Home / 1,007,939.28-1,512,130.13-740,890.18

Finding the Fourth Proportional to 1,007,939.28, 1,512,130.13 and 740,890.18

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Solution

The fourth proportional to 1,007,939.28, 1,512,130.13 and 740,890.18 is: 1,111,497.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,939.28 : 1,512,130.13 = 740,890.18 : x
  2. Step 2: Convert to fraction form
    1,007,939.28/1,512,130.13 = 740,890.18/x
  3. Step 3: Cross multiply
    1,007,939.28x = 1,512,130.13 × 740,890.18
  4. Step 4: Simplify right side
    1,007,939.28x = 1,120,322,360,494.67
  5. Step 5: Solve for x
    x = 1,120,322,360,494.67/1,007,939.28
  6. Step 6: Final answer
    x = 1,111,497.87

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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.