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Finding the Fourth Proportional to 641,988.56, 962,959.80 and 242,613.20

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Solution

The fourth proportional to 641,988.56, 962,959.80 and 242,613.20 is: 363,911.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,988.56 : 962,959.80 = 242,613.20 : x
  2. Step 2: Convert to fraction form
    641,988.56/962,959.80 = 242,613.20/x
  3. Step 3: Cross multiply
    641,988.56x = 962,959.80 × 242,613.20
  4. Step 4: Simplify right side
    641,988.56x = 233,626,758,549.36
  5. Step 5: Solve for x
    x = 233,626,758,549.36/641,988.56
  6. Step 6: Final answer
    x = 363,911.09

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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.