Home / 1,676,479.43-2,515,143.59-478,406

Finding the Fourth Proportional to 1,676,479.43, 2,515,143.59 and 478,406

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Solution

The fourth proportional to 1,676,479.43, 2,515,143.59 and 478,406 is: 717,730.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,676,479.43 : 2,515,143.59 = 478,406 : x
  2. Step 2: Convert to fraction form
    1,676,479.43/2,515,143.59 = 478,406/x
  3. Step 3: Cross multiply
    1,676,479.43x = 2,515,143.59 × 478,406
  4. Step 4: Simplify right side
    1,676,479.43x = 1,203,259,784,317.54
  5. Step 5: Solve for x
    x = 1,203,259,784,317.54/1,676,479.43
  6. Step 6: Final answer
    x = 717,730.12

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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.