Home / 750,886.72-1,036,217.28-406,723.20

Finding the Fourth Proportional to 750,886.72, 1,036,217.28 and 406,723.20

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Solution

The fourth proportional to 750,886.72, 1,036,217.28 and 406,723.20 is: 561,274.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,886.72 : 1,036,217.28 = 406,723.20 : x
  2. Step 2: Convert to fraction form
    750,886.72/1,036,217.28 = 406,723.20/x
  3. Step 3: Cross multiply
    750,886.72x = 1,036,217.28 × 406,723.20
  4. Step 4: Simplify right side
    750,886.72x = 421,453,608,016.90
  5. Step 5: Solve for x
    x = 421,453,608,016.90/750,886.72
  6. Step 6: Final answer
    x = 561,274.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.