Home / 453,979.49-680,967.07-138,435.35

Finding the Fourth Proportional to 453,979.49, 680,967.07 and 138,435.35

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Solution

The fourth proportional to 453,979.49, 680,967.07 and 138,435.35 is: 207,652.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,979.49 : 680,967.07 = 138,435.35 : x
  2. Step 2: Convert to fraction form
    453,979.49/680,967.07 = 138,435.35/x
  3. Step 3: Cross multiply
    453,979.49x = 680,967.07 × 138,435.35
  4. Step 4: Simplify right side
    453,979.49x = 94,269,910,923.00
  5. Step 5: Solve for x
    x = 94,269,910,923.00/453,979.49
  6. Step 6: Final answer
    x = 207,652.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.