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Finding the Fourth Proportional to 891,920.84, 1,230,851.54 and 484,022.67

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Solution

The fourth proportional to 891,920.84, 1,230,851.54 and 484,022.67 is: 667,951.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,920.84 : 1,230,851.54 = 484,022.67 : x
  2. Step 2: Convert to fraction form
    891,920.84/1,230,851.54 = 484,022.67/x
  3. Step 3: Cross multiply
    891,920.84x = 1,230,851.54 × 484,022.67
  4. Step 4: Simplify right side
    891,920.84x = 595,760,047,459.23
  5. Step 5: Solve for x
    x = 595,760,047,459.23/891,920.84
  6. Step 6: Final answer
    x = 667,951.71

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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.