Home / 2,987,002.40-4,480,519.80-743,140.40

Finding the Fourth Proportional to 2,987,002.40, 4,480,519.80 and 743,140.40

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Solution

The fourth proportional to 2,987,002.40, 4,480,519.80 and 743,140.40 is: 1,114,714.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987,002.40 : 4,480,519.80 = 743,140.40 : x
  2. Step 2: Convert to fraction form
    2,987,002.40/4,480,519.80 = 743,140.40/x
  3. Step 3: Cross multiply
    2,987,002.40x = 4,480,519.80 × 743,140.40
  4. Step 4: Simplify right side
    2,987,002.40x = 3,329,655,276,379.92
  5. Step 5: Solve for x
    x = 3,329,655,276,379.92/2,987,002.40
  6. Step 6: Final answer
    x = 1,114,714.63

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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.