Home / 891,338.69-1,230,045.45-483,438.42

Finding the Fourth Proportional to 891,338.69, 1,230,045.45 and 483,438.42

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Solution

The fourth proportional to 891,338.69, 1,230,045.45 and 483,438.42 is: 667,143.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,338.69 : 1,230,045.45 = 483,438.42 : x
  2. Step 2: Convert to fraction form
    891,338.69/1,230,045.45 = 483,438.42/x
  3. Step 3: Cross multiply
    891,338.69x = 1,230,045.45 × 483,438.42
  4. Step 4: Simplify right side
    891,338.69x = 594,651,228,876.19
  5. Step 5: Solve for x
    x = 594,651,228,876.19/891,338.69
  6. Step 6: Final answer
    x = 667,143.97

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Double scale
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1.5x scale

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.