Home / 805,690.59-1,209,068.30-379,348.34

Finding the Fourth Proportional to 805,690.59, 1,209,068.30 and 379,348.34

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Solution

The fourth proportional to 805,690.59, 1,209,068.30 and 379,348.34 is: 569,273.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,690.59 : 1,209,068.30 = 379,348.34 : x
  2. Step 2: Convert to fraction form
    805,690.59/1,209,068.30 = 379,348.34/x
  3. Step 3: Cross multiply
    805,690.59x = 1,209,068.30 × 379,348.34
  4. Step 4: Simplify right side
    805,690.59x = 458,658,044,609.54
  5. Step 5: Solve for x
    x = 458,658,044,609.54/805,690.59
  6. Step 6: Final answer
    x = 569,273.18

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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.