Home / 1,377,029.70-2,065,872.60-666,473.40

Finding the Fourth Proportional to 1,377,029.70, 2,065,872.60 and 666,473.40

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Solution

The fourth proportional to 1,377,029.70, 2,065,872.60 and 666,473.40 is: 999,868.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,029.70 : 2,065,872.60 = 666,473.40 : x
  2. Step 2: Convert to fraction form
    1,377,029.70/2,065,872.60 = 666,473.40/x
  3. Step 3: Cross multiply
    1,377,029.70x = 2,065,872.60 × 666,473.40
  4. Step 4: Simplify right side
    1,377,029.70x = 1,376,849,135,688.84
  5. Step 5: Solve for x
    x = 1,376,849,135,688.84/1,377,029.70
  6. Step 6: Final answer
    x = 999,868.87

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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.