Home / 330,912.17-456,758.63-286,071.84

Finding the Fourth Proportional to 330,912.17, 456,758.63 and 286,071.84

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Solution

The fourth proportional to 330,912.17, 456,758.63 and 286,071.84 is: 394,865.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,912.17 : 456,758.63 = 286,071.84 : x
  2. Step 2: Convert to fraction form
    330,912.17/456,758.63 = 286,071.84/x
  3. Step 3: Cross multiply
    330,912.17x = 456,758.63 × 286,071.84
  4. Step 4: Simplify right side
    330,912.17x = 130,665,781,362.39
  5. Step 5: Solve for x
    x = 130,665,781,362.39/330,912.17
  6. Step 6: Final answer
    x = 394,865.45

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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.