Home / 1,942,953.30-2,912,291.55-680,130.90

Finding the Fourth Proportional to 1,942,953.30, 2,912,291.55 and 680,130.90

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Solution

The fourth proportional to 1,942,953.30, 2,912,291.55 and 680,130.90 is: 1,019,447.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,953.30 : 2,912,291.55 = 680,130.90 : x
  2. Step 2: Convert to fraction form
    1,942,953.30/2,912,291.55 = 680,130.90/x
  3. Step 3: Cross multiply
    1,942,953.30x = 2,912,291.55 × 680,130.90
  4. Step 4: Simplify right side
    1,942,953.30x = 1,980,739,472,963.90
  5. Step 5: Solve for x
    x = 1,980,739,472,963.90/1,942,953.30
  6. Step 6: Final answer
    x = 1,019,447.80

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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.