Home / 945,619.65-1,305,055.62-578,311.66

Finding the Fourth Proportional to 945,619.65, 1,305,055.62 and 578,311.66

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Solution

The fourth proportional to 945,619.65, 1,305,055.62 and 578,311.66 is: 798,131.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,619.65 : 1,305,055.62 = 578,311.66 : x
  2. Step 2: Convert to fraction form
    945,619.65/1,305,055.62 = 578,311.66/x
  3. Step 3: Cross multiply
    945,619.65x = 1,305,055.62 × 578,311.66
  4. Step 4: Simplify right side
    945,619.65x = 754,728,881,581.88
  5. Step 5: Solve for x
    x = 754,728,881,581.88/945,619.65
  6. Step 6: Final answer
    x = 798,131.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.