Home / 1,389,152.39-2,083,728.59-915,727.04

Finding the Fourth Proportional to 1,389,152.39, 2,083,728.59 and 915,727.04

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Solution

The fourth proportional to 1,389,152.39, 2,083,728.59 and 915,727.04 is: 1,373,590.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,152.39 : 2,083,728.59 = 915,727.04 : x
  2. Step 2: Convert to fraction form
    1,389,152.39/2,083,728.59 = 915,727.04/x
  3. Step 3: Cross multiply
    1,389,152.39x = 2,083,728.59 × 915,727.04
  4. Step 4: Simplify right side
    1,389,152.39x = 1,908,126,604,610.09
  5. Step 5: Solve for x
    x = 1,908,126,604,610.09/1,389,152.39
  6. Step 6: Final answer
    x = 1,373,590.55

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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.