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Finding the Fourth Proportional to 803,212.42, 1,108,422.65 and 459,044.42

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Solution

The fourth proportional to 803,212.42, 1,108,422.65 and 459,044.42 is: 633,475.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,212.42 : 1,108,422.65 = 459,044.42 : x
  2. Step 2: Convert to fraction form
    803,212.42/1,108,422.65 = 459,044.42/x
  3. Step 3: Cross multiply
    803,212.42x = 1,108,422.65 × 459,044.42
  4. Step 4: Simplify right side
    803,212.42x = 508,815,232,484.11
  5. Step 5: Solve for x
    x = 508,815,232,484.11/803,212.42
  6. Step 6: Final answer
    x = 633,475.30

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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.