Home / 657,913.16-986,074.52-320,448.13

Finding the Fourth Proportional to 657,913.16, 986,074.52 and 320,448.13

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Solution

The fourth proportional to 657,913.16, 986,074.52 and 320,448.13 is: 480,284.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,913.16 : 986,074.52 = 320,448.13 : x
  2. Step 2: Convert to fraction form
    657,913.16/986,074.52 = 320,448.13/x
  3. Step 3: Cross multiply
    657,913.16x = 986,074.52 × 320,448.13
  4. Step 4: Simplify right side
    657,913.16x = 315,985,735,974.65
  5. Step 5: Solve for x
    x = 315,985,735,974.65/657,913.16
  6. Step 6: Final answer
    x = 480,284.87

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1.5x scale

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.