Home / 813,045.26-1,219,371.86-339,473.90

Finding the Fourth Proportional to 813,045.26, 1,219,371.86 and 339,473.90

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Solution

The fourth proportional to 813,045.26, 1,219,371.86 and 339,473.90 is: 509,129.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,045.26 : 1,219,371.86 = 339,473.90 : x
  2. Step 2: Convert to fraction form
    813,045.26/1,219,371.86 = 339,473.90/x
  3. Step 3: Cross multiply
    813,045.26x = 1,219,371.86 × 339,473.90
  4. Step 4: Simplify right side
    813,045.26x = 413,944,920,864.45
  5. Step 5: Solve for x
    x = 413,944,920,864.45/813,045.26
  6. Step 6: Final answer
    x = 509,129.00

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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.