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Finding the Fourth Proportional to 647,110.88, 892,749.96 and 429,422.22

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Solution

The fourth proportional to 647,110.88, 892,749.96 and 429,422.22 is: 592,428.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,110.88 : 892,749.96 = 429,422.22 : x
  2. Step 2: Convert to fraction form
    647,110.88/892,749.96 = 429,422.22/x
  3. Step 3: Cross multiply
    647,110.88x = 892,749.96 × 429,422.22
  4. Step 4: Simplify right side
    647,110.88x = 383,366,669,728.11
  5. Step 5: Solve for x
    x = 383,366,669,728.11/647,110.88
  6. Step 6: Final answer
    x = 592,428.10

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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.