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Finding the Fourth Proportional to 470,392.72, 649,117.40 and 255,532.12

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Solution

The fourth proportional to 470,392.72, 649,117.40 and 255,532.12 is: 352,620.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,392.72 : 649,117.40 = 255,532.12 : x
  2. Step 2: Convert to fraction form
    470,392.72/649,117.40 = 255,532.12/x
  3. Step 3: Cross multiply
    470,392.72x = 649,117.40 × 255,532.12
  4. Step 4: Simplify right side
    470,392.72x = 165,870,342,450.43
  5. Step 5: Solve for x
    x = 165,870,342,450.43/470,392.72
  6. Step 6: Final answer
    x = 352,620.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.