Home / 1,229,760.16-1,697,063.38-678,460.87

Finding the Fourth Proportional to 1,229,760.16, 1,697,063.38 and 678,460.87

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Solution

The fourth proportional to 1,229,760.16, 1,697,063.38 and 678,460.87 is: 936,272.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,760.16 : 1,697,063.38 = 678,460.87 : x
  2. Step 2: Convert to fraction form
    1,229,760.16/1,697,063.38 = 678,460.87/x
  3. Step 3: Cross multiply
    1,229,760.16x = 1,697,063.38 × 678,460.87
  4. Step 4: Simplify right side
    1,229,760.16x = 1,151,391,097,239.94
  5. Step 5: Solve for x
    x = 1,151,391,097,239.94/1,229,760.16
  6. Step 6: Final answer
    x = 936,272.89

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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.