Home / 875,171.80-1,312,757.70-210,323.80

Finding the Fourth Proportional to 875,171.80, 1,312,757.70 and 210,323.80

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Solution

The fourth proportional to 875,171.80, 1,312,757.70 and 210,323.80 is: 315,485.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,171.80 : 1,312,757.70 = 210,323.80 : x
  2. Step 2: Convert to fraction form
    875,171.80/1,312,757.70 = 210,323.80/x
  3. Step 3: Cross multiply
    875,171.80x = 1,312,757.70 × 210,323.80
  4. Step 4: Simplify right side
    875,171.80x = 276,104,187,943.26
  5. Step 5: Solve for x
    x = 276,104,187,943.26/875,171.80
  6. Step 6: Final answer
    x = 315,485.70

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Similar ratio
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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.