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Finding the Fourth Proportional to 639,549.84, 958,818.72 and 240,146.13

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Solution

The fourth proportional to 639,549.84, 958,818.72 and 240,146.13 is: 360,029.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,549.84 : 958,818.72 = 240,146.13 : x
  2. Step 2: Convert to fraction form
    639,549.84/958,818.72 = 240,146.13/x
  3. Step 3: Cross multiply
    639,549.84x = 958,818.72 × 240,146.13
  4. Step 4: Simplify right side
    639,549.84x = 230,256,604,979.55
  5. Step 5: Solve for x
    x = 230,256,604,979.55/639,549.84
  6. Step 6: Final answer
    x = 360,029.18

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1.5x scale

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.