Home / 867,551.32-1,197,220.62-485,578.12

Finding the Fourth Proportional to 867,551.32, 1,197,220.62 and 485,578.12

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Solution

The fourth proportional to 867,551.32, 1,197,220.62 and 485,578.12 is: 670,097.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,551.32 : 1,197,220.62 = 485,578.12 : x
  2. Step 2: Convert to fraction form
    867,551.32/1,197,220.62 = 485,578.12/x
  3. Step 3: Cross multiply
    867,551.32x = 1,197,220.62 × 485,578.12
  4. Step 4: Simplify right side
    867,551.32x = 581,344,137,884.84
  5. Step 5: Solve for x
    x = 581,344,137,884.84/867,551.32
  6. Step 6: Final answer
    x = 670,097.69

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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.