Home / 1,328,785.68-1,993,440.83-487,344.72

Finding the Fourth Proportional to 1,328,785.68, 1,993,440.83 and 487,344.72

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Solution

The fourth proportional to 1,328,785.68, 1,993,440.83 and 487,344.72 is: 731,113.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,785.68 : 1,993,440.83 = 487,344.72 : x
  2. Step 2: Convert to fraction form
    1,328,785.68/1,993,440.83 = 487,344.72/x
  3. Step 3: Cross multiply
    1,328,785.68x = 1,993,440.83 × 487,344.72
  4. Step 4: Simplify right side
    1,328,785.68x = 971,492,860,696.19
  5. Step 5: Solve for x
    x = 971,492,860,696.19/1,328,785.68
  6. Step 6: Final answer
    x = 731,113.28

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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.