Home / 838,651.73-1,256,813.76-382,127.29

Finding the Fourth Proportional to 838,651.73, 1,256,813.76 and 382,127.29

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Solution

The fourth proportional to 838,651.73, 1,256,813.76 and 382,127.29 is: 572,660.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,651.73 : 1,256,813.76 = 382,127.29 : x
  2. Step 2: Convert to fraction form
    838,651.73/1,256,813.76 = 382,127.29/x
  3. Step 3: Cross multiply
    838,651.73x = 1,256,813.76 × 382,127.29
  4. Step 4: Simplify right side
    838,651.73x = 480,262,829,859.44
  5. Step 5: Solve for x
    x = 480,262,829,859.44/838,651.73
  6. Step 6: Final answer
    x = 572,660.63

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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.