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Finding the Fourth Proportional to 533,119.28, 735,705.28 and 306,808.88

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Solution

The fourth proportional to 533,119.28, 735,705.28 and 306,808.88 is: 423,396.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,119.28 : 735,705.28 = 306,808.88 : x
  2. Step 2: Convert to fraction form
    533,119.28/735,705.28 = 306,808.88/x
  3. Step 3: Cross multiply
    533,119.28x = 735,705.28 × 306,808.88
  4. Step 4: Simplify right side
    533,119.28x = 225,720,912,966.89
  5. Step 5: Solve for x
    x = 225,720,912,966.89/533,119.28
  6. Step 6: Final answer
    x = 423,396.64

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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.