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Finding the Fourth Proportional to 610,785.79, 842,957.15 and 352,725.66

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Solution

The fourth proportional to 610,785.79, 842,957.15 and 352,725.66 is: 486,803.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,785.79 : 842,957.15 = 352,725.66 : x
  2. Step 2: Convert to fraction form
    610,785.79/842,957.15 = 352,725.66/x
  3. Step 3: Cross multiply
    610,785.79x = 842,957.15 × 352,725.66
  4. Step 4: Simplify right side
    610,785.79x = 297,332,615,321.84
  5. Step 5: Solve for x
    x = 297,332,615,321.84/610,785.79
  6. Step 6: Final answer
    x = 486,803.43

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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.