Home / 891,123.40-1,336,851.49-404,839.68

Finding the Fourth Proportional to 891,123.40, 1,336,851.49 and 404,839.68

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Solution

The fourth proportional to 891,123.40, 1,336,851.49 and 404,839.68 is: 607,335.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,123.40 : 1,336,851.49 = 404,839.68 : x
  2. Step 2: Convert to fraction form
    891,123.40/1,336,851.49 = 404,839.68/x
  3. Step 3: Cross multiply
    891,123.40x = 1,336,851.49 × 404,839.68
  4. Step 4: Simplify right side
    891,123.40x = 541,210,533,552.64
  5. Step 5: Solve for x
    x = 541,210,533,552.64/891,123.40
  6. Step 6: Final answer
    x = 607,335.12

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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.