Home / 4,985,478.50-7,479,479.36-1,391,244.98

Finding the Fourth Proportional to 4,985,478.50, 7,479,479.36 and 1,391,244.98

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Solution

The fourth proportional to 4,985,478.50, 7,479,479.36 and 1,391,244.98 is: 2,087,219.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985,478.50 : 7,479,479.36 = 1,391,244.98 : x
  2. Step 2: Convert to fraction form
    4,985,478.50/7,479,479.36 = 1,391,244.98/x
  3. Step 3: Cross multiply
    4,985,478.50x = 7,479,479.36 × 1,391,244.98
  4. Step 4: Simplify right side
    4,985,478.50x = 10,405,788,078,694.33
  5. Step 5: Solve for x
    x = 10,405,788,078,694.33/4,985,478.50
  6. Step 6: Final answer
    x = 2,087,219.53

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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.