Home / 645,853.30-968,434.35-271,453.30

Finding the Fourth Proportional to 645,853.30, 968,434.35 and 271,453.30

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Solution

The fourth proportional to 645,853.30, 968,434.35 and 271,453.30 is: 407,034.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,853.30 : 968,434.35 = 271,453.30 : x
  2. Step 2: Convert to fraction form
    645,853.30/968,434.35 = 271,453.30/x
  3. Step 3: Cross multiply
    645,853.30x = 968,434.35 × 271,453.30
  4. Step 4: Simplify right side
    645,853.30x = 262,884,700,140.86
  5. Step 5: Solve for x
    x = 262,884,700,140.86/645,853.30
  6. Step 6: Final answer
    x = 407,034.69

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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.