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Finding the Fourth Proportional to 646,957.96, 892,790.10 and 360,471.88

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Solution

The fourth proportional to 646,957.96, 892,790.10 and 360,471.88 is: 497,444.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,957.96 : 892,790.10 = 360,471.88 : x
  2. Step 2: Convert to fraction form
    646,957.96/892,790.10 = 360,471.88/x
  3. Step 3: Cross multiply
    646,957.96x = 892,790.10 × 360,471.88
  4. Step 4: Simplify right side
    646,957.96x = 321,825,725,792.39
  5. Step 5: Solve for x
    x = 321,825,725,792.39/646,957.96
  6. Step 6: Final answer
    x = 497,444.57

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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.