Home / 811,292.60-1,214,606.10-787,964.60

Finding the Fourth Proportional to 811,292.60, 1,214,606.10 and 787,964.60

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Solution

The fourth proportional to 811,292.60, 1,214,606.10 and 787,964.60 is: 1,179,681.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,292.60 : 1,214,606.10 = 787,964.60 : x
  2. Step 2: Convert to fraction form
    811,292.60/1,214,606.10 = 787,964.60/x
  3. Step 3: Cross multiply
    811,292.60x = 1,214,606.10 × 787,964.60
  4. Step 4: Simplify right side
    811,292.60x = 957,066,609,744.06
  5. Step 5: Solve for x
    x = 957,066,609,744.06/811,292.60
  6. Step 6: Final answer
    x = 1,179,681.18

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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.