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Finding the Fourth Proportional to 645,228.88, 967,212.60 and 290,332.24

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Solution

The fourth proportional to 645,228.88, 967,212.60 and 290,332.24 is: 435,214.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,228.88 : 967,212.60 = 290,332.24 : x
  2. Step 2: Convert to fraction form
    645,228.88/967,212.60 = 290,332.24/x
  3. Step 3: Cross multiply
    645,228.88x = 967,212.60 × 290,332.24
  4. Step 4: Simplify right side
    645,228.88x = 280,813,000,714.22
  5. Step 5: Solve for x
    x = 280,813,000,714.22/645,228.88
  6. Step 6: Final answer
    x = 435,214.56

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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.