Home / 803,105.10-1,108,319.79-480,752.82

Finding the Fourth Proportional to 803,105.10, 1,108,319.79 and 480,752.82

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Solution

The fourth proportional to 803,105.10, 1,108,319.79 and 480,752.82 is: 663,459.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,105.10 : 1,108,319.79 = 480,752.82 : x
  2. Step 2: Convert to fraction form
    803,105.10/1,108,319.79 = 480,752.82/x
  3. Step 3: Cross multiply
    803,105.10x = 1,108,319.79 × 480,752.82
  4. Step 4: Simplify right side
    803,105.10x = 532,827,864,504.31
  5. Step 5: Solve for x
    x = 532,827,864,504.31/803,105.10
  6. Step 6: Final answer
    x = 663,459.69

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1.5x scale

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.