Home / 2,098,313.80-3,148,248.30-678,416.20

Finding the Fourth Proportional to 2,098,313.80, 3,148,248.30 and 678,416.20

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Solution

The fourth proportional to 2,098,313.80, 3,148,248.30 and 678,416.20 is: 1,017,875.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,098,313.80 : 3,148,248.30 = 678,416.20 : x
  2. Step 2: Convert to fraction form
    2,098,313.80/3,148,248.30 = 678,416.20/x
  3. Step 3: Cross multiply
    2,098,313.80x = 3,148,248.30 × 678,416.20
  4. Step 4: Simplify right side
    2,098,313.80x = 2,135,822,648,342.46
  5. Step 5: Solve for x
    x = 2,135,822,648,342.46/2,098,313.80
  6. Step 6: Final answer
    x = 1,017,875.71

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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.