Home / 2,113,291.20-3,171,686.40-977,800.80

Finding the Fourth Proportional to 2,113,291.20, 3,171,686.40 and 977,800.80

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Solution

The fourth proportional to 2,113,291.20, 3,171,686.40 and 977,800.80 is: 1,467,510.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113,291.20 : 3,171,686.40 = 977,800.80 : x
  2. Step 2: Convert to fraction form
    2,113,291.20/3,171,686.40 = 977,800.80/x
  3. Step 3: Cross multiply
    2,113,291.20x = 3,171,686.40 × 977,800.80
  4. Step 4: Simplify right side
    2,113,291.20x = 3,101,277,499,269.12
  5. Step 5: Solve for x
    x = 3,101,277,499,269.12/2,113,291.20
  6. Step 6: Final answer
    x = 1,467,510.72

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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.