Home / 2,989,390.50-4,125,446.37-1,631,350.98

Finding the Fourth Proportional to 2,989,390.50, 4,125,446.37 and 1,631,350.98

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Solution

The fourth proportional to 2,989,390.50, 4,125,446.37 and 1,631,350.98 is: 2,251,312.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989,390.50 : 4,125,446.37 = 1,631,350.98 : x
  2. Step 2: Convert to fraction form
    2,989,390.50/4,125,446.37 = 1,631,350.98/x
  3. Step 3: Cross multiply
    2,989,390.50x = 4,125,446.37 × 1,631,350.98
  4. Step 4: Simplify right side
    2,989,390.50x = 6,730,050,978,636.94
  5. Step 5: Solve for x
    x = 6,730,050,978,636.94/2,989,390.50
  6. Step 6: Final answer
    x = 2,251,312.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.