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Finding the Fourth Proportional to 714,365.92, 1,071,335 and 287,764.84

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Solution

The fourth proportional to 714,365.92, 1,071,335 and 287,764.84 is: 431,561.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,365.92 : 1,071,335 = 287,764.84 : x
  2. Step 2: Convert to fraction form
    714,365.92/1,071,335 = 287,764.84/x
  3. Step 3: Cross multiply
    714,365.92x = 1,071,335 × 287,764.84
  4. Step 4: Simplify right side
    714,365.92x = 308,292,544,861.40
  5. Step 5: Solve for x
    x = 308,292,544,861.40/714,365.92
  6. Step 6: Final answer
    x = 431,561.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.