Home / 790,856.46-1,091,376.42-428,272.02

Finding the Fourth Proportional to 790,856.46, 1,091,376.42 and 428,272.02

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Solution

The fourth proportional to 790,856.46, 1,091,376.42 and 428,272.02 is: 591,012.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,856.46 : 1,091,376.42 = 428,272.02 : x
  2. Step 2: Convert to fraction form
    790,856.46/1,091,376.42 = 428,272.02/x
  3. Step 3: Cross multiply
    790,856.46x = 1,091,376.42 × 428,272.02
  4. Step 4: Simplify right side
    790,856.46x = 467,405,983,973.77
  5. Step 5: Solve for x
    x = 467,405,983,973.77/790,856.46
  6. Step 6: Final answer
    x = 591,012.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.