Home / 2,978,995.17-4,110,892.28-1,689,807.88

Finding the Fourth Proportional to 2,978,995.17, 4,110,892.28 and 1,689,807.88

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Solution

The fourth proportional to 2,978,995.17, 4,110,892.28 and 1,689,807.88 is: 2,331,866.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,978,995.17 : 4,110,892.28 = 1,689,807.88 : x
  2. Step 2: Convert to fraction form
    2,978,995.17/4,110,892.28 = 1,689,807.88/x
  3. Step 3: Cross multiply
    2,978,995.17x = 4,110,892.28 × 1,689,807.88
  4. Step 4: Simplify right side
    2,978,995.17x = 6,946,618,153,230.34
  5. Step 5: Solve for x
    x = 6,946,618,153,230.34/2,978,995.17
  6. Step 6: Final answer
    x = 2,331,866.20

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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.