Home / 804,575.90-1,207,641.45-405,667.10

Finding the Fourth Proportional to 804,575.90, 1,207,641.45 and 405,667.10

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Solution

The fourth proportional to 804,575.90, 1,207,641.45 and 405,667.10 is: 608,892.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,575.90 : 1,207,641.45 = 405,667.10 : x
  2. Step 2: Convert to fraction form
    804,575.90/1,207,641.45 = 405,667.10/x
  3. Step 3: Cross multiply
    804,575.90x = 1,207,641.45 × 405,667.10
  4. Step 4: Simplify right side
    804,575.90x = 489,900,404,861.30
  5. Step 5: Solve for x
    x = 489,900,404,861.30/804,575.90
  6. Step 6: Final answer
    x = 608,892.72

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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.