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Finding the Fourth Proportional to 485,071.88, 727,056.05 and 295,113.51

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Solution

The fourth proportional to 485,071.88, 727,056.05 and 295,113.51 is: 442,334.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,071.88 : 727,056.05 = 295,113.51 : x
  2. Step 2: Convert to fraction form
    485,071.88/727,056.05 = 295,113.51/x
  3. Step 3: Cross multiply
    485,071.88x = 727,056.05 × 295,113.51
  4. Step 4: Simplify right side
    485,071.88x = 214,564,061,406.67
  5. Step 5: Solve for x
    x = 214,564,061,406.67/485,071.88
  6. Step 6: Final answer
    x = 442,334.57

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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.