Home / 885,717.76-1,328,787.55-286,679.02

Finding the Fourth Proportional to 885,717.76, 1,328,787.55 and 286,679.02

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Solution

The fourth proportional to 885,717.76, 1,328,787.55 and 286,679.02 is: 430,086.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,717.76 : 1,328,787.55 = 286,679.02 : x
  2. Step 2: Convert to fraction form
    885,717.76/1,328,787.55 = 286,679.02/x
  3. Step 3: Cross multiply
    885,717.76x = 1,328,787.55 × 286,679.02
  4. Step 4: Simplify right side
    885,717.76x = 380,935,512,622.20
  5. Step 5: Solve for x
    x = 380,935,512,622.20/885,717.76
  6. Step 6: Final answer
    x = 430,086.79

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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.