Home / 770,132.55-1,062,457.47-515,565.75

Finding the Fourth Proportional to 770,132.55, 1,062,457.47 and 515,565.75

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Solution

The fourth proportional to 770,132.55, 1,062,457.47 and 515,565.75 is: 711,262.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,132.55 : 1,062,457.47 = 515,565.75 : x
  2. Step 2: Convert to fraction form
    770,132.55/1,062,457.47 = 515,565.75/x
  3. Step 3: Cross multiply
    770,132.55x = 1,062,457.47 × 515,565.75
  4. Step 4: Simplify right side
    770,132.55x = 547,766,682,363.65
  5. Step 5: Solve for x
    x = 547,766,682,363.65/770,132.55
  6. Step 6: Final answer
    x = 711,262.86

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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.