Home / 1,231,307.80-1,843,851.30-808,293.40

Finding the Fourth Proportional to 1,231,307.80, 1,843,851.30 and 808,293.40

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Solution

The fourth proportional to 1,231,307.80, 1,843,851.30 and 808,293.40 is: 1,210,398.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,307.80 : 1,843,851.30 = 808,293.40 : x
  2. Step 2: Convert to fraction form
    1,231,307.80/1,843,851.30 = 808,293.40/x
  3. Step 3: Cross multiply
    1,231,307.80x = 1,843,851.30 × 808,293.40
  4. Step 4: Simplify right side
    1,231,307.80x = 1,490,372,836,371.42
  5. Step 5: Solve for x
    x = 1,490,372,836,371.42/1,231,307.80
  6. Step 6: Final answer
    x = 1,210,398.27

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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.