Home / 876,767.28-1,314,839.88-315,651.12

Finding the Fourth Proportional to 876,767.28, 1,314,839.88 and 315,651.12

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Solution

The fourth proportional to 876,767.28, 1,314,839.88 and 315,651.12 is: 473,364.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,767.28 : 1,314,839.88 = 315,651.12 : x
  2. Step 2: Convert to fraction form
    876,767.28/1,314,839.88 = 315,651.12/x
  3. Step 3: Cross multiply
    876,767.28x = 1,314,839.88 × 315,651.12
  4. Step 4: Simplify right side
    876,767.28x = 415,030,680,742.67
  5. Step 5: Solve for x
    x = 415,030,680,742.67/876,767.28
  6. Step 6: Final answer
    x = 473,364.70

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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.