Home / 697,913.70-1,042,142.88-554,145.78

Finding the Fourth Proportional to 697,913.70, 1,042,142.88 and 554,145.78

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Solution

The fourth proportional to 697,913.70, 1,042,142.88 and 554,145.78 is: 827,464.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,913.70 : 1,042,142.88 = 554,145.78 : x
  2. Step 2: Convert to fraction form
    697,913.70/1,042,142.88 = 554,145.78/x
  3. Step 3: Cross multiply
    697,913.70x = 1,042,142.88 × 554,145.78
  4. Step 4: Simplify right side
    697,913.70x = 577,499,079,109.05
  5. Step 5: Solve for x
    x = 577,499,079,109.05/697,913.70
  6. Step 6: Final answer
    x = 827,464.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.