Home / 1,117,156-1,541,778.96-640,228

Finding the Fourth Proportional to 1,117,156, 1,541,778.96 and 640,228

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Solution

The fourth proportional to 1,117,156, 1,541,778.96 and 640,228 is: 883,574.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,156 : 1,541,778.96 = 640,228 : x
  2. Step 2: Convert to fraction form
    1,117,156/1,541,778.96 = 640,228/x
  3. Step 3: Cross multiply
    1,117,156x = 1,541,778.96 × 640,228
  4. Step 4: Simplify right side
    1,117,156x = 987,090,060,002.88
  5. Step 5: Solve for x
    x = 987,090,060,002.88/1,117,156
  6. Step 6: Final answer
    x = 883,574.06

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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.