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Finding the Fourth Proportional to 680,135.84, 938,594.64 and 374,216.24

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Solution

The fourth proportional to 680,135.84, 938,594.64 and 374,216.24 is: 516,422.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,135.84 : 938,594.64 = 374,216.24 : x
  2. Step 2: Convert to fraction form
    680,135.84/938,594.64 = 374,216.24/x
  3. Step 3: Cross multiply
    680,135.84x = 938,594.64 × 374,216.24
  4. Step 4: Simplify right side
    680,135.84x = 351,237,357,064.95
  5. Step 5: Solve for x
    x = 351,237,357,064.95/680,135.84
  6. Step 6: Final answer
    x = 516,422.36

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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.