Home / 777,845.50-1,073,426.79-438,325.90

Finding the Fourth Proportional to 777,845.50, 1,073,426.79 and 438,325.90

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Solution

The fourth proportional to 777,845.50, 1,073,426.79 and 438,325.90 is: 604,889.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,845.50 : 1,073,426.79 = 438,325.90 : x
  2. Step 2: Convert to fraction form
    777,845.50/1,073,426.79 = 438,325.90/x
  3. Step 3: Cross multiply
    777,845.50x = 1,073,426.79 × 438,325.90
  4. Step 4: Simplify right side
    777,845.50x = 470,510,763,810.86
  5. Step 5: Solve for x
    x = 470,510,763,810.86/777,845.50
  6. Step 6: Final answer
    x = 604,889.74

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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.