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Finding the Fourth Proportional to 649,516.80, 974,422.80 and 294,632.40

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Solution

The fourth proportional to 649,516.80, 974,422.80 and 294,632.40 is: 442,015.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,516.80 : 974,422.80 = 294,632.40 : x
  2. Step 2: Convert to fraction form
    649,516.80/974,422.80 = 294,632.40/x
  3. Step 3: Cross multiply
    649,516.80x = 974,422.80 × 294,632.40
  4. Step 4: Simplify right side
    649,516.80x = 287,096,528,178.72
  5. Step 5: Solve for x
    x = 287,096,528,178.72/649,516.80
  6. Step 6: Final answer
    x = 442,015.55

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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.