Home / 709,881.52-979,623.36-403,951.12

Finding the Fourth Proportional to 709,881.52, 979,623.36 and 403,951.12

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Solution

The fourth proportional to 709,881.52, 979,623.36 and 403,951.12 is: 557,445.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,881.52 : 979,623.36 = 403,951.12 : x
  2. Step 2: Convert to fraction form
    709,881.52/979,623.36 = 403,951.12/x
  3. Step 3: Cross multiply
    709,881.52x = 979,623.36 × 403,951.12
  4. Step 4: Simplify right side
    709,881.52x = 395,719,953,450.16
  5. Step 5: Solve for x
    x = 395,719,953,450.16/709,881.52
  6. Step 6: Final answer
    x = 557,445.07

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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.