Home / 805,943.32-1,208,907.69-300,487.12

Finding the Fourth Proportional to 805,943.32, 1,208,907.69 and 300,487.12

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Solution

The fourth proportional to 805,943.32, 1,208,907.69 and 300,487.12 is: 450,727.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,943.32 : 1,208,907.69 = 300,487.12 : x
  2. Step 2: Convert to fraction form
    805,943.32/1,208,907.69 = 300,487.12/x
  3. Step 3: Cross multiply
    805,943.32x = 1,208,907.69 × 300,487.12
  4. Step 4: Simplify right side
    805,943.32x = 363,261,190,113.95
  5. Step 5: Solve for x
    x = 363,261,190,113.95/805,943.32
  6. Step 6: Final answer
    x = 450,727.96

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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.