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Finding the Fourth Proportional to 864,814.61, 1,296,096.71 and 351,881.98

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Solution

The fourth proportional to 864,814.61, 1,296,096.71 and 351,881.98 is: 527,365.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,814.61 : 1,296,096.71 = 351,881.98 : x
  2. Step 2: Convert to fraction form
    864,814.61/1,296,096.71 = 351,881.98/x
  3. Step 3: Cross multiply
    864,814.61x = 1,296,096.71 × 351,881.98
  4. Step 4: Simplify right side
    864,814.61x = 456,073,074,225.75
  5. Step 5: Solve for x
    x = 456,073,074,225.75/864,814.61
  6. Step 6: Final answer
    x = 527,365.13

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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.