Home / 2,098,306.80-3,148,237.80-678,409.20

Finding the Fourth Proportional to 2,098,306.80, 3,148,237.80 and 678,409.20

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Solution

The fourth proportional to 2,098,306.80, 3,148,237.80 and 678,409.20 is: 1,017,865.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,098,306.80 : 3,148,237.80 = 678,409.20 : x
  2. Step 2: Convert to fraction form
    2,098,306.80/3,148,237.80 = 678,409.20/x
  3. Step 3: Cross multiply
    2,098,306.80x = 3,148,237.80 × 678,409.20
  4. Step 4: Simplify right side
    2,098,306.80x = 2,135,793,487,307.76
  5. Step 5: Solve for x
    x = 2,135,793,487,307.76/2,098,306.80
  6. Step 6: Final answer
    x = 1,017,865.21

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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.