Home / 2,140,179.90-3,210,265.53-520,935.90

Finding the Fourth Proportional to 2,140,179.90, 3,210,265.53 and 520,935.90

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Solution

The fourth proportional to 2,140,179.90, 3,210,265.53 and 520,935.90 is: 781,402.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,179.90 : 3,210,265.53 = 520,935.90 : x
  2. Step 2: Convert to fraction form
    2,140,179.90/3,210,265.53 = 520,935.90/x
  3. Step 3: Cross multiply
    2,140,179.90x = 3,210,265.53 × 520,935.90
  4. Step 4: Simplify right side
    2,140,179.90x = 1,672,342,563,109.53
  5. Step 5: Solve for x
    x = 1,672,342,563,109.53/2,140,179.90
  6. Step 6: Final answer
    x = 781,402.80

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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.