Home / 750,780.67-1,036,076.99-406,616.61

Finding the Fourth Proportional to 750,780.67, 1,036,076.99 and 406,616.61

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Solution

The fourth proportional to 750,780.67, 1,036,076.99 and 406,616.61 is: 561,130.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,780.67 : 1,036,076.99 = 406,616.61 : x
  2. Step 2: Convert to fraction form
    750,780.67/1,036,076.99 = 406,616.61/x
  3. Step 3: Cross multiply
    750,780.67x = 1,036,076.99 × 406,616.61
  4. Step 4: Simplify right side
    750,780.67x = 421,286,113,141.28
  5. Step 5: Solve for x
    x = 421,286,113,141.28/750,780.67
  6. Step 6: Final answer
    x = 561,130.74

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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.