Home / 715,345.08-987,262.03-429,022.68

Finding the Fourth Proportional to 715,345.08, 987,262.03 and 429,022.68

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Solution

The fourth proportional to 715,345.08, 987,262.03 and 429,022.68 is: 592,102.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,345.08 : 987,262.03 = 429,022.68 : x
  2. Step 2: Convert to fraction form
    715,345.08/987,262.03 = 429,022.68/x
  3. Step 3: Cross multiply
    715,345.08x = 987,262.03 × 429,022.68
  4. Step 4: Simplify right side
    715,345.08x = 423,557,801,972.84
  5. Step 5: Solve for x
    x = 423,557,801,972.84/715,345.08
  6. Step 6: Final answer
    x = 592,102.77

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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.