Home / 1,760,576.40-2,640,864.60-815,792.40

Finding the Fourth Proportional to 1,760,576.40, 2,640,864.60 and 815,792.40

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Solution

The fourth proportional to 1,760,576.40, 2,640,864.60 and 815,792.40 is: 1,223,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,760,576.40 : 2,640,864.60 = 815,792.40 : x
  2. Step 2: Convert to fraction form
    1,760,576.40/2,640,864.60 = 815,792.40/x
  3. Step 3: Cross multiply
    1,760,576.40x = 2,640,864.60 × 815,792.40
  4. Step 4: Simplify right side
    1,760,576.40x = 2,154,397,270,109.04
  5. Step 5: Solve for x
    x = 2,154,397,270,109.04/1,760,576.40
  6. Step 6: Final answer
    x = 1,223,688.60

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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.