Home / 777,494.65-1,166,400.56-440,685.72

Finding the Fourth Proportional to 777,494.65, 1,166,400.56 and 440,685.72

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Solution

The fourth proportional to 777,494.65, 1,166,400.56 and 440,685.72 is: 661,118.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,494.65 : 1,166,400.56 = 440,685.72 : x
  2. Step 2: Convert to fraction form
    777,494.65/1,166,400.56 = 440,685.72/x
  3. Step 3: Cross multiply
    777,494.65x = 1,166,400.56 × 440,685.72
  4. Step 4: Simplify right side
    777,494.65x = 514,016,070,592.00
  5. Step 5: Solve for x
    x = 514,016,070,592.00/777,494.65
  6. Step 6: Final answer
    x = 661,118.47

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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.