Home / 687,351.75-1,030,690.26-282,470.55

Finding the Fourth Proportional to 687,351.75, 1,030,690.26 and 282,470.55

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Solution

The fourth proportional to 687,351.75, 1,030,690.26 and 282,470.55 is: 423,567.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,351.75 : 1,030,690.26 = 282,470.55 : x
  2. Step 2: Convert to fraction form
    687,351.75/1,030,690.26 = 282,470.55/x
  3. Step 3: Cross multiply
    687,351.75x = 1,030,690.26 × 282,470.55
  4. Step 4: Simplify right side
    687,351.75x = 291,139,644,621.84
  5. Step 5: Solve for x
    x = 291,139,644,621.84/687,351.75
  6. Step 6: Final answer
    x = 423,567.18

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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.