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Finding the Fourth Proportional to 631,885.68, 947,994.66 and 227,118.72

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Solution

The fourth proportional to 631,885.68, 947,994.66 and 227,118.72 is: 340,737.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,885.68 : 947,994.66 = 227,118.72 : x
  2. Step 2: Convert to fraction form
    631,885.68/947,994.66 = 227,118.72/x
  3. Step 3: Cross multiply
    631,885.68x = 947,994.66 × 227,118.72
  4. Step 4: Simplify right side
    631,885.68x = 215,307,333,746.04
  5. Step 5: Solve for x
    x = 215,307,333,746.04/631,885.68
  6. Step 6: Final answer
    x = 340,737.80

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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.