Home / 513,764.48-709,137.60-298,946.18

Finding the Fourth Proportional to 513,764.48, 709,137.60 and 298,946.18

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Solution

The fourth proportional to 513,764.48, 709,137.60 and 298,946.18 is: 412,628.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,764.48 : 709,137.60 = 298,946.18 : x
  2. Step 2: Convert to fraction form
    513,764.48/709,137.60 = 298,946.18/x
  3. Step 3: Cross multiply
    513,764.48x = 709,137.60 × 298,946.18
  4. Step 4: Simplify right side
    513,764.48x = 211,993,976,614.37
  5. Step 5: Solve for x
    x = 211,993,976,614.37/513,764.48
  6. Step 6: Final answer
    x = 412,628.71

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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.