Home / 1,638,895.80-2,458,343.70-1,005,756.60

Finding the Fourth Proportional to 1,638,895.80, 2,458,343.70 and 1,005,756.60

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Solution

The fourth proportional to 1,638,895.80, 2,458,343.70 and 1,005,756.60 is: 1,508,634.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,895.80 : 2,458,343.70 = 1,005,756.60 : x
  2. Step 2: Convert to fraction form
    1,638,895.80/2,458,343.70 = 1,005,756.60/x
  3. Step 3: Cross multiply
    1,638,895.80x = 2,458,343.70 × 1,005,756.60
  4. Step 4: Simplify right side
    1,638,895.80x = 2,472,495,401,343.42
  5. Step 5: Solve for x
    x = 2,472,495,401,343.42/1,638,895.80
  6. Step 6: Final answer
    x = 1,508,634.90

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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.