Home / 457,762.13-631,719.33-253,821.65

Finding the Fourth Proportional to 457,762.13, 631,719.33 and 253,821.65

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Solution

The fourth proportional to 457,762.13, 631,719.33 and 253,821.65 is: 350,278.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,762.13 : 631,719.33 = 253,821.65 : x
  2. Step 2: Convert to fraction form
    457,762.13/631,719.33 = 253,821.65/x
  3. Step 3: Cross multiply
    457,762.13x = 631,719.33 × 253,821.65
  4. Step 4: Simplify right side
    457,762.13x = 160,344,039,518.90
  5. Step 5: Solve for x
    x = 160,344,039,518.90/457,762.13
  6. Step 6: Final answer
    x = 350,278.08

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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.