Home / 513,686.74-708,716.01-298,781.19

Finding the Fourth Proportional to 513,686.74, 708,716.01 and 298,781.19

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Solution

The fourth proportional to 513,686.74, 708,716.01 and 298,781.19 is: 412,218.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,686.74 : 708,716.01 = 298,781.19 : x
  2. Step 2: Convert to fraction form
    513,686.74/708,716.01 = 298,781.19/x
  3. Step 3: Cross multiply
    513,686.74x = 708,716.01 × 298,781.19
  4. Step 4: Simplify right side
    513,686.74x = 211,751,011,302.60
  5. Step 5: Solve for x
    x = 211,751,011,302.60/513,686.74
  6. Step 6: Final answer
    x = 412,218.18

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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.