Home / 875,126.43-1,312,689.66-210,278.43

Finding the Fourth Proportional to 875,126.43, 1,312,689.66 and 210,278.43

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Solution

The fourth proportional to 875,126.43, 1,312,689.66 and 210,278.43 is: 315,417.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,126.43 : 1,312,689.66 = 210,278.43 : x
  2. Step 2: Convert to fraction form
    875,126.43/1,312,689.66 = 210,278.43/x
  3. Step 3: Cross multiply
    875,126.43x = 1,312,689.66 × 210,278.43
  4. Step 4: Simplify right side
    875,126.43x = 276,030,320,782.03
  5. Step 5: Solve for x
    x = 276,030,320,782.03/875,126.43
  6. Step 6: Final answer
    x = 315,417.65

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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.