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Finding the Fourth Proportional to 634,140.40, 875,113.48 and 347,654.32

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Solution

The fourth proportional to 634,140.40, 875,113.48 and 347,654.32 is: 479,762.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,140.40 : 875,113.48 = 347,654.32 : x
  2. Step 2: Convert to fraction form
    634,140.40/875,113.48 = 347,654.32/x
  3. Step 3: Cross multiply
    634,140.40x = 875,113.48 × 347,654.32
  4. Step 4: Simplify right side
    634,140.40x = 304,236,981,812.23
  5. Step 5: Solve for x
    x = 304,236,981,812.23/634,140.40
  6. Step 6: Final answer
    x = 479,762.81

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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.