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Finding the Fourth Proportional to 803,490.96, 1,108,814.48 and 440,920.88

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Solution

The fourth proportional to 803,490.96, 1,108,814.48 and 440,920.88 is: 608,469.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,490.96 : 1,108,814.48 = 440,920.88 : x
  2. Step 2: Convert to fraction form
    803,490.96/1,108,814.48 = 440,920.88/x
  3. Step 3: Cross multiply
    803,490.96x = 1,108,814.48 × 440,920.88
  4. Step 4: Simplify right side
    803,490.96x = 488,899,456,278.34
  5. Step 5: Solve for x
    x = 488,899,456,278.34/803,490.96
  6. Step 6: Final answer
    x = 608,469.14

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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.