Home / 771,276.20-1,156,428.30-322,309.40

Finding the Fourth Proportional to 771,276.20, 1,156,428.30 and 322,309.40

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Solution

The fourth proportional to 771,276.20, 1,156,428.30 and 322,309.40 is: 483,261.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,276.20 : 1,156,428.30 = 322,309.40 : x
  2. Step 2: Convert to fraction form
    771,276.20/1,156,428.30 = 322,309.40/x
  3. Step 3: Cross multiply
    771,276.20x = 1,156,428.30 × 322,309.40
  4. Step 4: Simplify right side
    771,276.20x = 372,727,711,516.02
  5. Step 5: Solve for x
    x = 372,727,711,516.02/771,276.20
  6. Step 6: Final answer
    x = 483,261.00

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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.