Home / 1,078,948.62-1,618,598.13-405,082.86

Finding the Fourth Proportional to 1,078,948.62, 1,618,598.13 and 405,082.86

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Solution

The fourth proportional to 1,078,948.62, 1,618,598.13 and 405,082.86 is: 607,690.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,948.62 : 1,618,598.13 = 405,082.86 : x
  2. Step 2: Convert to fraction form
    1,078,948.62/1,618,598.13 = 405,082.86/x
  3. Step 3: Cross multiply
    1,078,948.62x = 1,618,598.13 × 405,082.86
  4. Step 4: Simplify right side
    1,078,948.62x = 655,666,359,691.05
  5. Step 5: Solve for x
    x = 655,666,359,691.05/1,078,948.62
  6. Step 6: Final answer
    x = 607,690.07

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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.