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Finding the Fourth Proportional to 646,612.83, 892,353.24 and 360,132.93

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Solution

The fourth proportional to 646,612.83, 892,353.24 and 360,132.93 is: 496,998.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,612.83 : 892,353.24 = 360,132.93 : x
  2. Step 2: Convert to fraction form
    646,612.83/892,353.24 = 360,132.93/x
  3. Step 3: Cross multiply
    646,612.83x = 892,353.24 × 360,132.93
  4. Step 4: Simplify right side
    646,612.83x = 321,365,786,916.19
  5. Step 5: Solve for x
    x = 321,365,786,916.19/646,612.83
  6. Step 6: Final answer
    x = 496,998.78

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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.