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Finding the Fourth Proportional to 635,689.84, 954,368.16 and 426,264.88

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Solution

The fourth proportional to 635,689.84, 954,368.16 and 426,264.88 is: 639,956.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,689.84 : 954,368.16 = 426,264.88 : x
  2. Step 2: Convert to fraction form
    635,689.84/954,368.16 = 426,264.88/x
  3. Step 3: Cross multiply
    635,689.84x = 954,368.16 × 426,264.88
  4. Step 4: Simplify right side
    635,689.84x = 406,813,629,198.22
  5. Step 5: Solve for x
    x = 406,813,629,198.22/635,689.84
  6. Step 6: Final answer
    x = 639,956.16

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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.