Home / 612,616.14-845,286.39-357,918.12

Finding the Fourth Proportional to 612,616.14, 845,286.39 and 357,918.12

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Solution

The fourth proportional to 612,616.14, 845,286.39 and 357,918.12 is: 493,854.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,616.14 : 845,286.39 = 357,918.12 : x
  2. Step 2: Convert to fraction form
    612,616.14/845,286.39 = 357,918.12/x
  3. Step 3: Cross multiply
    612,616.14x = 845,286.39 × 357,918.12
  4. Step 4: Simplify right side
    612,616.14x = 302,543,315,570.39
  5. Step 5: Solve for x
    x = 302,543,315,570.39/612,616.14
  6. Step 6: Final answer
    x = 493,854.63

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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.