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Finding the Fourth Proportional to 680,282.22, 938,798.10 and 374,393.82

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Solution

The fourth proportional to 680,282.22, 938,798.10 and 374,393.82 is: 516,668.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,282.22 : 938,798.10 = 374,393.82 : x
  2. Step 2: Convert to fraction form
    680,282.22/938,798.10 = 374,393.82/x
  3. Step 3: Cross multiply
    680,282.22x = 938,798.10 × 374,393.82
  4. Step 4: Simplify right side
    680,282.22x = 351,480,206,867.74
  5. Step 5: Solve for x
    x = 351,480,206,867.74/680,282.22
  6. Step 6: Final answer
    x = 516,668.22

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1.5x scale

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.