Home / 645,280.28-968,117.34-329,958.68

Finding the Fourth Proportional to 645,280.28, 968,117.34 and 329,958.68

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Solution

The fourth proportional to 645,280.28, 968,117.34 and 329,958.68 is: 495,038.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,280.28 : 968,117.34 = 329,958.68 : x
  2. Step 2: Convert to fraction form
    645,280.28/968,117.34 = 329,958.68/x
  3. Step 3: Cross multiply
    645,280.28x = 968,117.34 × 329,958.68
  4. Step 4: Simplify right side
    645,280.28x = 319,438,719,591.51
  5. Step 5: Solve for x
    x = 319,438,719,591.51/645,280.28
  6. Step 6: Final answer
    x = 495,038.71

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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.