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Finding the Fourth Proportional to 642,797.66, 964,206.22 and 243,331.18

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Solution

The fourth proportional to 642,797.66, 964,206.22 and 243,331.18 is: 365,000.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,797.66 : 964,206.22 = 243,331.18 : x
  2. Step 2: Convert to fraction form
    642,797.66/964,206.22 = 243,331.18/x
  3. Step 3: Cross multiply
    642,797.66x = 964,206.22 × 243,331.18
  4. Step 4: Simplify right side
    642,797.66x = 234,621,437,275.94
  5. Step 5: Solve for x
    x = 234,621,437,275.94/642,797.66
  6. Step 6: Final answer
    x = 365,000.45

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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.