Home / 2,105,702.30-2,905,869.15-1,138,832.58

Finding the Fourth Proportional to 2,105,702.30, 2,905,869.15 and 1,138,832.58

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Solution

The fourth proportional to 2,105,702.30, 2,905,869.15 and 1,138,832.58 is: 1,571,588.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,702.30 : 2,905,869.15 = 1,138,832.58 : x
  2. Step 2: Convert to fraction form
    2,105,702.30/2,905,869.15 = 1,138,832.58/x
  3. Step 3: Cross multiply
    2,105,702.30x = 2,905,869.15 × 1,138,832.58
  4. Step 4: Simplify right side
    2,105,702.30x = 3,309,298,461,236.91
  5. Step 5: Solve for x
    x = 3,309,298,461,236.91/2,105,702.30
  6. Step 6: Final answer
    x = 1,571,588.95

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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.