Home / 1,376,122.70-2,064,512.10-665,566.40

Finding the Fourth Proportional to 1,376,122.70, 2,064,512.10 and 665,566.40

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Solution

The fourth proportional to 1,376,122.70, 2,064,512.10 and 665,566.40 is: 998,508.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,122.70 : 2,064,512.10 = 665,566.40 : x
  2. Step 2: Convert to fraction form
    1,376,122.70/2,064,512.10 = 665,566.40/x
  3. Step 3: Cross multiply
    1,376,122.70x = 2,064,512.10 × 665,566.40
  4. Step 4: Simplify right side
    1,376,122.70x = 1,374,069,886,153.44
  5. Step 5: Solve for x
    x = 1,374,069,886,153.44/1,376,122.70
  6. Step 6: Final answer
    x = 998,508.26

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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.