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Finding the Fourth Proportional to 647,238.60, 972,024.30 and 626,243.40

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Solution

The fourth proportional to 647,238.60, 972,024.30 and 626,243.40 is: 940,493.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,238.60 : 972,024.30 = 626,243.40 : x
  2. Step 2: Convert to fraction form
    647,238.60/972,024.30 = 626,243.40/x
  3. Step 3: Cross multiply
    647,238.60x = 972,024.30 × 626,243.40
  4. Step 4: Simplify right side
    647,238.60x = 608,723,802,514.62
  5. Step 5: Solve for x
    x = 608,723,802,514.62/647,238.60
  6. Step 6: Final answer
    x = 940,493.66

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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.