Home / 781,573.71-1,171,748.13-308,613.09

Finding the Fourth Proportional to 781,573.71, 1,171,748.13 and 308,613.09

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Solution

The fourth proportional to 781,573.71, 1,171,748.13 and 308,613.09 is: 462,677.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,573.71 : 1,171,748.13 = 308,613.09 : x
  2. Step 2: Convert to fraction form
    781,573.71/1,171,748.13 = 308,613.09/x
  3. Step 3: Cross multiply
    781,573.71x = 1,171,748.13 × 308,613.09
  4. Step 4: Simplify right side
    781,573.71x = 361,616,811,101.02
  5. Step 5: Solve for x
    x = 361,616,811,101.02/781,573.71
  6. Step 6: Final answer
    x = 462,677.81

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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.