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Finding the Fourth Proportional to 674,759.88, 931,188.42 and 368,853.12

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Solution

The fourth proportional to 674,759.88, 931,188.42 and 368,853.12 is: 509,028.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,759.88 : 931,188.42 = 368,853.12 : x
  2. Step 2: Convert to fraction form
    674,759.88/931,188.42 = 368,853.12/x
  3. Step 3: Cross multiply
    674,759.88x = 931,188.42 × 368,853.12
  4. Step 4: Simplify right side
    674,759.88x = 343,471,754,024.87
  5. Step 5: Solve for x
    x = 343,471,754,024.87/674,759.88
  6. Step 6: Final answer
    x = 509,028.12

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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.