Home / 513,723.48-709,080.88-298,905.04

Finding the Fourth Proportional to 513,723.48, 709,080.88 and 298,905.04

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Solution

The fourth proportional to 513,723.48, 709,080.88 and 298,905.04 is: 412,571.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,723.48 : 709,080.88 = 298,905.04 : x
  2. Step 2: Convert to fraction form
    513,723.48/709,080.88 = 298,905.04/x
  3. Step 3: Cross multiply
    513,723.48x = 709,080.88 × 298,905.04
  4. Step 4: Simplify right side
    513,723.48x = 211,947,848,799.64
  5. Step 5: Solve for x
    x = 211,947,848,799.64/513,723.48
  6. Step 6: Final answer
    x = 412,571.85

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1.5x scale

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.