Home / 1,377,375.72-2,064,880.22-478,700.70

Finding the Fourth Proportional to 1,377,375.72, 2,064,880.22 and 478,700.70

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Solution

The fourth proportional to 1,377,375.72, 2,064,880.22 and 478,700.70 is: 717,639.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,375.72 : 2,064,880.22 = 478,700.70 : x
  2. Step 2: Convert to fraction form
    1,377,375.72/2,064,880.22 = 478,700.70/x
  3. Step 3: Cross multiply
    1,377,375.72x = 2,064,880.22 × 478,700.70
  4. Step 4: Simplify right side
    1,377,375.72x = 988,459,606,730.15
  5. Step 5: Solve for x
    x = 988,459,606,730.15/1,377,375.72
  6. Step 6: Final answer
    x = 717,639.78

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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.