Home / 743,354.06-1,114,985.97-263,605.59

Finding the Fourth Proportional to 743,354.06, 1,114,985.97 and 263,605.59

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Solution

The fourth proportional to 743,354.06, 1,114,985.97 and 263,605.59 is: 395,392.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,354.06 : 1,114,985.97 = 263,605.59 : x
  2. Step 2: Convert to fraction form
    743,354.06/1,114,985.97 = 263,605.59/x
  3. Step 3: Cross multiply
    743,354.06x = 1,114,985.97 × 263,605.59
  4. Step 4: Simplify right side
    743,354.06x = 293,916,534,463.57
  5. Step 5: Solve for x
    x = 293,916,534,463.57/743,354.06
  6. Step 6: Final answer
    x = 395,392.39

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Double scale
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Similar ratio
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1.5x scale

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.