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Finding the Fourth Proportional to 716,275.70, 988,600.70 and 410,556.86

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Solution

The fourth proportional to 716,275.70, 988,600.70 and 410,556.86 is: 566,648.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,275.70 : 988,600.70 = 410,556.86 : x
  2. Step 2: Convert to fraction form
    716,275.70/988,600.70 = 410,556.86/x
  3. Step 3: Cross multiply
    716,275.70x = 988,600.70 × 410,556.86
  4. Step 4: Simplify right side
    716,275.70x = 405,876,795,269.19
  5. Step 5: Solve for x
    x = 405,876,795,269.19/716,275.70
  6. Step 6: Final answer
    x = 566,648.84

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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.