Home / 1,138,962.16-1,571,800.80-629,697.52

Finding the Fourth Proportional to 1,138,962.16, 1,571,800.80 and 629,697.52

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Solution

The fourth proportional to 1,138,962.16, 1,571,800.80 and 629,697.52 is: 869,000.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,962.16 : 1,571,800.80 = 629,697.52 : x
  2. Step 2: Convert to fraction form
    1,138,962.16/1,571,800.80 = 629,697.52/x
  3. Step 3: Cross multiply
    1,138,962.16x = 1,571,800.80 × 629,697.52
  4. Step 4: Simplify right side
    1,138,962.16x = 989,759,065,694.02
  5. Step 5: Solve for x
    x = 989,759,065,694.02/1,138,962.16
  6. Step 6: Final answer
    x = 869,000.83

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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.