Home / 1,397,426.02-1,928,341.68-785,481.56

Finding the Fourth Proportional to 1,397,426.02, 1,928,341.68 and 785,481.56

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Solution

The fourth proportional to 1,397,426.02, 1,928,341.68 and 785,481.56 is: 1,083,904.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,426.02 : 1,928,341.68 = 785,481.56 : x
  2. Step 2: Convert to fraction form
    1,397,426.02/1,928,341.68 = 785,481.56/x
  3. Step 3: Cross multiply
    1,397,426.02x = 1,928,341.68 × 785,481.56
  4. Step 4: Simplify right side
    1,397,426.02x = 1,514,676,831,019.42
  5. Step 5: Solve for x
    x = 1,514,676,831,019.42/1,397,426.02
  6. Step 6: Final answer
    x = 1,083,904.84

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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.