Home / 1,138,919.90-1,706,411.55-538,588.40

Finding the Fourth Proportional to 1,138,919.90, 1,706,411.55 and 538,588.40

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Solution

The fourth proportional to 1,138,919.90, 1,706,411.55 and 538,588.40 is: 806,951.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,919.90 : 1,706,411.55 = 538,588.40 : x
  2. Step 2: Convert to fraction form
    1,138,919.90/1,706,411.55 = 538,588.40/x
  3. Step 3: Cross multiply
    1,138,919.90x = 1,706,411.55 × 538,588.40
  4. Step 4: Simplify right side
    1,138,919.90x = 919,053,466,456.02
  5. Step 5: Solve for x
    x = 919,053,466,456.02/1,138,919.90
  6. Step 6: Final answer
    x = 806,951.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.