Home / 1,213,378.08-1,674,451.22-669,518.98

Finding the Fourth Proportional to 1,213,378.08, 1,674,451.22 and 669,518.98

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Solution

The fourth proportional to 1,213,378.08, 1,674,451.22 and 669,518.98 is: 923,930.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,378.08 : 1,674,451.22 = 669,518.98 : x
  2. Step 2: Convert to fraction form
    1,213,378.08/1,674,451.22 = 669,518.98/x
  3. Step 3: Cross multiply
    1,213,378.08x = 1,674,451.22 × 669,518.98
  4. Step 4: Simplify right side
    1,213,378.08x = 1,121,076,872,874.16
  5. Step 5: Solve for x
    x = 1,121,076,872,874.16/1,213,378.08
  6. Step 6: Final answer
    x = 923,930.38

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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.