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Finding the Fourth Proportional to 636,659.64, 878,590.76 and 350,201.52

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Solution

The fourth proportional to 636,659.64, 878,590.76 and 350,201.52 is: 483,278.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,659.64 : 878,590.76 = 350,201.52 : x
  2. Step 2: Convert to fraction form
    636,659.64/878,590.76 = 350,201.52/x
  3. Step 3: Cross multiply
    636,659.64x = 878,590.76 × 350,201.52
  4. Step 4: Simplify right side
    636,659.64x = 307,683,819,609.96
  5. Step 5: Solve for x
    x = 307,683,819,609.96/636,659.64
  6. Step 6: Final answer
    x = 483,278.35

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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.