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Finding the Fourth Proportional to 661,635.44, 913,059.28 and 359,829.44

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Solution

The fourth proportional to 661,635.44, 913,059.28 and 359,829.44 is: 496,565.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,635.44 : 913,059.28 = 359,829.44 : x
  2. Step 2: Convert to fraction form
    661,635.44/913,059.28 = 359,829.44/x
  3. Step 3: Cross multiply
    661,635.44x = 913,059.28 × 359,829.44
  4. Step 4: Simplify right side
    661,635.44x = 328,545,609,409.20
  5. Step 5: Solve for x
    x = 328,545,609,409.20/661,635.44
  6. Step 6: Final answer
    x = 496,565.92

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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.