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Finding the Fourth Proportional to 642,475.48, 963,722.96 and 243,304.24

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Solution

The fourth proportional to 642,475.48, 963,722.96 and 243,304.24 is: 364,960.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,475.48 : 963,722.96 = 243,304.24 : x
  2. Step 2: Convert to fraction form
    642,475.48/963,722.96 = 243,304.24/x
  3. Step 3: Cross multiply
    642,475.48x = 963,722.96 × 243,304.24
  4. Step 4: Simplify right side
    642,475.48x = 234,477,882,353.35
  5. Step 5: Solve for x
    x = 234,477,882,353.35/642,475.48
  6. Step 6: Final answer
    x = 364,960.05

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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.