Home / 2,146,871.78-3,220,428.29-688,045.16

Finding the Fourth Proportional to 2,146,871.78, 3,220,428.29 and 688,045.16

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Solution

The fourth proportional to 2,146,871.78, 3,220,428.29 and 688,045.16 is: 1,032,106.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146,871.78 : 3,220,428.29 = 688,045.16 : x
  2. Step 2: Convert to fraction form
    2,146,871.78/3,220,428.29 = 688,045.16/x
  3. Step 3: Cross multiply
    2,146,871.78x = 3,220,428.29 × 688,045.16
  4. Step 4: Simplify right side
    2,146,871.78x = 2,215,800,078,519.21
  5. Step 5: Solve for x
    x = 2,215,800,078,519.21/2,146,871.78
  6. Step 6: Final answer
    x = 1,032,106.39

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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.