Home / 824,801.80-1,236,612.30-318,929.80

Finding the Fourth Proportional to 824,801.80, 1,236,612.30 and 318,929.80

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Solution

The fourth proportional to 824,801.80, 1,236,612.30 and 318,929.80 is: 478,166.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,801.80 : 1,236,612.30 = 318,929.80 : x
  2. Step 2: Convert to fraction form
    824,801.80/1,236,612.30 = 318,929.80/x
  3. Step 3: Cross multiply
    824,801.80x = 1,236,612.30 × 318,929.80
  4. Step 4: Simplify right side
    824,801.80x = 394,392,513,516.54
  5. Step 5: Solve for x
    x = 394,392,513,516.54/824,801.80
  6. Step 6: Final answer
    x = 478,166.41

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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.