Home / 803,105.66-1,108,320.56-480,753.39

Finding the Fourth Proportional to 803,105.66, 1,108,320.56 and 480,753.39

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Solution

The fourth proportional to 803,105.66, 1,108,320.56 and 480,753.39 is: 663,460.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,105.66 : 1,108,320.56 = 480,753.39 : x
  2. Step 2: Convert to fraction form
    803,105.66/1,108,320.56 = 480,753.39/x
  3. Step 3: Cross multiply
    803,105.66x = 1,108,320.56 × 480,753.39
  4. Step 4: Simplify right side
    803,105.66x = 532,828,864,022.93
  5. Step 5: Solve for x
    x = 532,828,864,022.93/803,105.66
  6. Step 6: Final answer
    x = 663,460.48

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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.