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Finding the Fourth Proportional to 867,572.72, 1,301,108.76 and 298,930.64

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Solution

The fourth proportional to 867,572.72, 1,301,108.76 and 298,930.64 is: 448,309.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,572.72 : 1,301,108.76 = 298,930.64 : x
  2. Step 2: Convert to fraction form
    867,572.72/1,301,108.76 = 298,930.64/x
  3. Step 3: Cross multiply
    867,572.72x = 1,301,108.76 × 298,930.64
  4. Step 4: Simplify right side
    867,572.72x = 388,941,274,336.41
  5. Step 5: Solve for x
    x = 388,941,274,336.41/867,572.72
  6. Step 6: Final answer
    x = 448,309.71

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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.