Home / 1,380,440.46-1,904,715-870,847.50

Finding the Fourth Proportional to 1,380,440.46, 1,904,715 and 870,847.50

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Solution

The fourth proportional to 1,380,440.46, 1,904,715 and 870,847.50 is: 1,201,584.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,440.46 : 1,904,715 = 870,847.50 : x
  2. Step 2: Convert to fraction form
    1,380,440.46/1,904,715 = 870,847.50/x
  3. Step 3: Cross multiply
    1,380,440.46x = 1,904,715 × 870,847.50
  4. Step 4: Simplify right side
    1,380,440.46x = 1,658,716,295,962.50
  5. Step 5: Solve for x
    x = 1,658,716,295,962.50/1,380,440.46
  6. Step 6: Final answer
    x = 1,201,584.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.