Home / 1,913,148.09-2,640,144.38-1,053,708.35

Finding the Fourth Proportional to 1,913,148.09, 2,640,144.38 and 1,053,708.35

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Solution

The fourth proportional to 1,913,148.09, 2,640,144.38 and 1,053,708.35 is: 1,454,117.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,148.09 : 2,640,144.38 = 1,053,708.35 : x
  2. Step 2: Convert to fraction form
    1,913,148.09/2,640,144.38 = 1,053,708.35/x
  3. Step 3: Cross multiply
    1,913,148.09x = 2,640,144.38 × 1,053,708.35
  4. Step 4: Simplify right side
    1,913,148.09x = 2,781,942,159,942.31
  5. Step 5: Solve for x
    x = 2,781,942,159,942.31/1,913,148.09
  6. Step 6: Final answer
    x = 1,454,117.52

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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.