Home / 765,655.20-1,147,199.76-540,642.06

Finding the Fourth Proportional to 765,655.20, 1,147,199.76 and 540,642.06

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Solution

The fourth proportional to 765,655.20, 1,147,199.76 and 540,642.06 is: 810,057.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,655.20 : 1,147,199.76 = 540,642.06 : x
  2. Step 2: Convert to fraction form
    765,655.20/1,147,199.76 = 540,642.06/x
  3. Step 3: Cross multiply
    765,655.20x = 1,147,199.76 × 540,642.06
  4. Step 4: Simplify right side
    765,655.20x = 620,224,441,477.91
  5. Step 5: Solve for x
    x = 620,224,441,477.91/765,655.20
  6. Step 6: Final answer
    x = 810,057.11

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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.