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Finding the Fourth Proportional to 803,506.70, 1,108,855.97 and 440,909.39

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Solution

The fourth proportional to 803,506.70, 1,108,855.97 and 440,909.39 is: 608,464.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,506.70 : 1,108,855.97 = 440,909.39 : x
  2. Step 2: Convert to fraction form
    803,506.70/1,108,855.97 = 440,909.39/x
  3. Step 3: Cross multiply
    803,506.70x = 1,108,855.97 × 440,909.39
  4. Step 4: Simplify right side
    803,506.70x = 488,905,001,581.73
  5. Step 5: Solve for x
    x = 488,905,001,581.73/803,506.70
  6. Step 6: Final answer
    x = 608,464.13

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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.