Home / 810,628.04-1,118,647.26-443,088.78

Finding the Fourth Proportional to 810,628.04, 1,118,647.26 and 443,088.78

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Solution

The fourth proportional to 810,628.04, 1,118,647.26 and 443,088.78 is: 611,451.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,628.04 : 1,118,647.26 = 443,088.78 : x
  2. Step 2: Convert to fraction form
    810,628.04/1,118,647.26 = 443,088.78/x
  3. Step 3: Cross multiply
    810,628.04x = 1,118,647.26 × 443,088.78
  4. Step 4: Simplify right side
    810,628.04x = 495,660,049,683.74
  5. Step 5: Solve for x
    x = 495,660,049,683.74/810,628.04
  6. Step 6: Final answer
    x = 611,451.90

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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.