Home / 767,999.80-1,152,345.30-269,721.40

Finding the Fourth Proportional to 767,999.80, 1,152,345.30 and 269,721.40

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Solution

The fourth proportional to 767,999.80, 1,152,345.30 and 269,721.40 is: 404,703.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,999.80 : 1,152,345.30 = 269,721.40 : x
  2. Step 2: Convert to fraction form
    767,999.80/1,152,345.30 = 269,721.40/x
  3. Step 3: Cross multiply
    767,999.80x = 1,152,345.30 × 269,721.40
  4. Step 4: Simplify right side
    767,999.80x = 310,812,187,599.42
  5. Step 5: Solve for x
    x = 310,812,187,599.42/767,999.80
  6. Step 6: Final answer
    x = 404,703.47

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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.