Home / 2,118,303.88-3,177,428.12-520,880.78

Finding the Fourth Proportional to 2,118,303.88, 3,177,428.12 and 520,880.78

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Solution

The fourth proportional to 2,118,303.88, 3,177,428.12 and 520,880.78 is: 781,314.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118,303.88 : 3,177,428.12 = 520,880.78 : x
  2. Step 2: Convert to fraction form
    2,118,303.88/3,177,428.12 = 520,880.78/x
  3. Step 3: Cross multiply
    2,118,303.88x = 3,177,428.12 × 520,880.78
  4. Step 4: Simplify right side
    2,118,303.88x = 1,655,061,234,935.13
  5. Step 5: Solve for x
    x = 1,655,061,234,935.13/2,118,303.88
  6. Step 6: Final answer
    x = 781,314.36

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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.