Home / 1,115,063.20-1,538,919.12-662,356

Finding the Fourth Proportional to 1,115,063.20, 1,538,919.12 and 662,356

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Solution

The fourth proportional to 1,115,063.20, 1,538,919.12 and 662,356 is: 914,129.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,063.20 : 1,538,919.12 = 662,356 : x
  2. Step 2: Convert to fraction form
    1,115,063.20/1,538,919.12 = 662,356/x
  3. Step 3: Cross multiply
    1,115,063.20x = 1,538,919.12 × 662,356
  4. Step 4: Simplify right side
    1,115,063.20x = 1,019,312,312,646.72
  5. Step 5: Solve for x
    x = 1,019,312,312,646.72/1,115,063.20
  6. Step 6: Final answer
    x = 914,129.63

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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.