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Finding the Fourth Proportional to 947,255.20, 1,419,658 and 708,726.40

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Solution

The fourth proportional to 947,255.20, 1,419,658 and 708,726.40 is: 1,062,173.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,255.20 : 1,419,658 = 708,726.40 : x
  2. Step 2: Convert to fraction form
    947,255.20/1,419,658 = 708,726.40/x
  3. Step 3: Cross multiply
    947,255.20x = 1,419,658 × 708,726.40
  4. Step 4: Simplify right side
    947,255.20x = 1,006,149,103,571.20
  5. Step 5: Solve for x
    x = 1,006,149,103,571.20/947,255.20
  6. Step 6: Final answer
    x = 1,062,173.22

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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.