Home / 319,536.08-442,823.87-315,026

Finding the Fourth Proportional to 319,536.08, 442,823.87 and 315,026

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Solution

The fourth proportional to 319,536.08, 442,823.87 and 315,026 is: 436,573.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,536.08 : 442,823.87 = 315,026 : x
  2. Step 2: Convert to fraction form
    319,536.08/442,823.87 = 315,026/x
  3. Step 3: Cross multiply
    319,536.08x = 442,823.87 × 315,026
  4. Step 4: Simplify right side
    319,536.08x = 139,501,032,470.62
  5. Step 5: Solve for x
    x = 139,501,032,470.62/319,536.08
  6. Step 6: Final answer
    x = 436,573.65

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.