Home / 1,913,265.72-2,640,207.02-1,188,098.10

Finding the Fourth Proportional to 1,913,265.72, 2,640,207.02 and 1,188,098.10

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Solution

The fourth proportional to 1,913,265.72, 2,640,207.02 and 1,188,098.10 is: 1,639,513.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,265.72 : 2,640,207.02 = 1,188,098.10 : x
  2. Step 2: Convert to fraction form
    1,913,265.72/2,640,207.02 = 1,188,098.10/x
  3. Step 3: Cross multiply
    1,913,265.72x = 2,640,207.02 × 1,188,098.10
  4. Step 4: Simplify right side
    1,913,265.72x = 3,136,824,938,128.17
  5. Step 5: Solve for x
    x = 3,136,824,938,128.17/1,913,265.72
  6. Step 6: Final answer
    x = 1,639,513.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.