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Finding the Fourth Proportional to 649,877.64, 974,441.24 and 200,477.84

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Solution

The fourth proportional to 649,877.64, 974,441.24 and 200,477.84 is: 300,601.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,877.64 : 974,441.24 = 200,477.84 : x
  2. Step 2: Convert to fraction form
    649,877.64/974,441.24 = 200,477.84/x
  3. Step 3: Cross multiply
    649,877.64x = 974,441.24 × 200,477.84
  4. Step 4: Simplify right side
    649,877.64x = 195,353,875,002.12
  5. Step 5: Solve for x
    x = 195,353,875,002.12/649,877.64
  6. Step 6: Final answer
    x = 300,601.01

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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.