Home / 1,013,871.21-1,399,018.55-807,664.79

Finding the Fourth Proportional to 1,013,871.21, 1,399,018.55 and 807,664.79

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Solution

The fourth proportional to 1,013,871.21, 1,399,018.55 and 807,664.79 is: 1,114,478.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,871.21 : 1,399,018.55 = 807,664.79 : x
  2. Step 2: Convert to fraction form
    1,013,871.21/1,399,018.55 = 807,664.79/x
  3. Step 3: Cross multiply
    1,013,871.21x = 1,399,018.55 × 807,664.79
  4. Step 4: Simplify right side
    1,013,871.21x = 1,129,938,012,358.44
  5. Step 5: Solve for x
    x = 1,129,938,012,358.44/1,013,871.21
  6. Step 6: Final answer
    x = 1,114,478.84

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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.