Home / 401,783.52-554,834.70-258,789.36

Finding the Fourth Proportional to 401,783.52, 554,834.70 and 258,789.36

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Solution

The fourth proportional to 401,783.52, 554,834.70 and 258,789.36 is: 357,369.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,783.52 : 554,834.70 = 258,789.36 : x
  2. Step 2: Convert to fraction form
    401,783.52/554,834.70 = 258,789.36/x
  3. Step 3: Cross multiply
    401,783.52x = 554,834.70 × 258,789.36
  4. Step 4: Simplify right side
    401,783.52x = 143,585,316,918.79
  5. Step 5: Solve for x
    x = 143,585,316,918.79/401,783.52
  6. Step 6: Final answer
    x = 357,369.85

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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.