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Finding the Fourth Proportional to 542,860.30, 814,290.45 and 455,769.10

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Solution

The fourth proportional to 542,860.30, 814,290.45 and 455,769.10 is: 683,653.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,860.30 : 814,290.45 = 455,769.10 : x
  2. Step 2: Convert to fraction form
    542,860.30/814,290.45 = 455,769.10/x
  3. Step 3: Cross multiply
    542,860.30x = 814,290.45 × 455,769.10
  4. Step 4: Simplify right side
    542,860.30x = 371,128,425,535.10
  5. Step 5: Solve for x
    x = 371,128,425,535.10/542,860.30
  6. Step 6: Final answer
    x = 683,653.65

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.