Home / 811,290.60-1,214,603.10-787,962.60

Finding the Fourth Proportional to 811,290.60, 1,214,603.10 and 787,962.60

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Solution

The fourth proportional to 811,290.60, 1,214,603.10 and 787,962.60 is: 1,179,678.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,290.60 : 1,214,603.10 = 787,962.60 : x
  2. Step 2: Convert to fraction form
    811,290.60/1,214,603.10 = 787,962.60/x
  3. Step 3: Cross multiply
    811,290.60x = 1,214,603.10 × 787,962.60
  4. Step 4: Simplify right side
    811,290.60x = 957,061,816,644.06
  5. Step 5: Solve for x
    x = 957,061,816,644.06/811,290.60
  6. Step 6: Final answer
    x = 1,179,678.18

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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.