Home / 1,095,515.20-1,640,047.20-816,270.40

Finding the Fourth Proportional to 1,095,515.20, 1,640,047.20 and 816,270.40

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Solution

The fourth proportional to 1,095,515.20, 1,640,047.20 and 816,270.40 is: 1,222,002.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,515.20 : 1,640,047.20 = 816,270.40 : x
  2. Step 2: Convert to fraction form
    1,095,515.20/1,640,047.20 = 816,270.40/x
  3. Step 3: Cross multiply
    1,095,515.20x = 1,640,047.20 × 816,270.40
  4. Step 4: Simplify right side
    1,095,515.20x = 1,338,721,983,962.88
  5. Step 5: Solve for x
    x = 1,338,721,983,962.88/1,095,515.20
  6. Step 6: Final answer
    x = 1,222,002.20

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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.