Home / 1,397,425.02-1,928,340.30-785,480.56

Finding the Fourth Proportional to 1,397,425.02, 1,928,340.30 and 785,480.56

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Solution

The fourth proportional to 1,397,425.02, 1,928,340.30 and 785,480.56 is: 1,083,903.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,425.02 : 1,928,340.30 = 785,480.56 : x
  2. Step 2: Convert to fraction form
    1,397,425.02/1,928,340.30 = 785,480.56/x
  3. Step 3: Cross multiply
    1,397,425.02x = 1,928,340.30 × 785,480.56
  4. Step 4: Simplify right side
    1,397,425.02x = 1,514,673,818,714.57
  5. Step 5: Solve for x
    x = 1,514,673,818,714.57/1,397,425.02
  6. Step 6: Final answer
    x = 1,083,903.46

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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.