Home / 700,345.22-966,512.39-428,327.76

Finding the Fourth Proportional to 700,345.22, 966,512.39 and 428,327.76

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Solution

The fourth proportional to 700,345.22, 966,512.39 and 428,327.76 is: 591,114.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,345.22 : 966,512.39 = 428,327.76 : x
  2. Step 2: Convert to fraction form
    700,345.22/966,512.39 = 428,327.76/x
  3. Step 3: Cross multiply
    700,345.22x = 966,512.39 × 428,327.76
  4. Step 4: Simplify right side
    700,345.22x = 413,984,085,476.44
  5. Step 5: Solve for x
    x = 413,984,085,476.44/700,345.22
  6. Step 6: Final answer
    x = 591,114.31

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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.