Home / 875,132.51-1,312,698.69-210,284.51

Finding the Fourth Proportional to 875,132.51, 1,312,698.69 and 210,284.51

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Solution

The fourth proportional to 875,132.51, 1,312,698.69 and 210,284.51 is: 315,426.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,132.51 : 1,312,698.69 = 210,284.51 : x
  2. Step 2: Convert to fraction form
    875,132.51/1,312,698.69 = 210,284.51/x
  3. Step 3: Cross multiply
    875,132.51x = 1,312,698.69 × 210,284.51
  4. Step 4: Simplify right side
    875,132.51x = 276,040,194,240.80
  5. Step 5: Solve for x
    x = 276,040,194,240.80/875,132.51
  6. Step 6: Final answer
    x = 315,426.74

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Double scale
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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.