Home / 810,622.07-1,118,662.84-443,099.70

Finding the Fourth Proportional to 810,622.07, 1,118,662.84 and 443,099.70

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Solution

The fourth proportional to 810,622.07, 1,118,662.84 and 443,099.70 is: 611,479.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,622.07 : 1,118,662.84 = 443,099.70 : x
  2. Step 2: Convert to fraction form
    810,622.07/1,118,662.84 = 443,099.70/x
  3. Step 3: Cross multiply
    810,622.07x = 1,118,662.84 × 443,099.70
  4. Step 4: Simplify right side
    810,622.07x = 495,679,168,805.15
  5. Step 5: Solve for x
    x = 495,679,168,805.15/810,622.07
  6. Step 6: Final answer
    x = 611,479.98

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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.