Home / 1,376,121.70-2,064,510.60-665,565.40

Finding the Fourth Proportional to 1,376,121.70, 2,064,510.60 and 665,565.40

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Solution

The fourth proportional to 1,376,121.70, 2,064,510.60 and 665,565.40 is: 998,506.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,121.70 : 2,064,510.60 = 665,565.40 : x
  2. Step 2: Convert to fraction form
    1,376,121.70/2,064,510.60 = 665,565.40/x
  3. Step 3: Cross multiply
    1,376,121.70x = 2,064,510.60 × 665,565.40
  4. Step 4: Simplify right side
    1,376,121.70x = 1,374,066,823,293.24
  5. Step 5: Solve for x
    x = 1,374,066,823,293.24/1,376,121.70
  6. Step 6: Final answer
    x = 998,506.76

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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.