Home / 3,986,339.40-5,979,509.10-1,590,553.80

Finding the Fourth Proportional to 3,986,339.40, 5,979,509.10 and 1,590,553.80

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Solution

The fourth proportional to 3,986,339.40, 5,979,509.10 and 1,590,553.80 is: 2,385,830.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,339.40 : 5,979,509.10 = 1,590,553.80 : x
  2. Step 2: Convert to fraction form
    3,986,339.40/5,979,509.10 = 1,590,553.80/x
  3. Step 3: Cross multiply
    3,986,339.40x = 5,979,509.10 × 1,590,553.80
  4. Step 4: Simplify right side
    3,986,339.40x = 9,510,730,921,139.58
  5. Step 5: Solve for x
    x = 9,510,730,921,139.58/3,986,339.40
  6. Step 6: Final answer
    x = 2,385,830.70

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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.