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Finding the Fourth Proportional to 803,007.62, 1,108,243.11 and 480,717.64

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Solution

The fourth proportional to 803,007.62, 1,108,243.11 and 480,717.64 is: 663,445.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,007.62 : 1,108,243.11 = 480,717.64 : x
  2. Step 2: Convert to fraction form
    803,007.62/1,108,243.11 = 480,717.64/x
  3. Step 3: Cross multiply
    803,007.62x = 1,108,243.11 × 480,717.64
  4. Step 4: Simplify right side
    803,007.62x = 532,752,009,339.59
  5. Step 5: Solve for x
    x = 532,752,009,339.59/803,007.62
  6. Step 6: Final answer
    x = 663,445.77

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Double scale
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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.