Home / 867,083.85-1,300,625.78-235,996.65

Finding the Fourth Proportional to 867,083.85, 1,300,625.78 and 235,996.65

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Solution

The fourth proportional to 867,083.85, 1,300,625.78 and 235,996.65 is: 353,994.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,083.85 : 1,300,625.78 = 235,996.65 : x
  2. Step 2: Convert to fraction form
    867,083.85/1,300,625.78 = 235,996.65/x
  3. Step 3: Cross multiply
    867,083.85x = 1,300,625.78 × 235,996.65
  4. Step 4: Simplify right side
    867,083.85x = 306,943,325,803.65
  5. Step 5: Solve for x
    x = 306,943,325,803.65/867,083.85
  6. Step 6: Final answer
    x = 353,994.98

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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.