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Finding the Fourth Proportional to 649,885.91, 975,307.71 and 308,330.58

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Solution

The fourth proportional to 649,885.91, 975,307.71 and 308,330.58 is: 462,723.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,885.91 : 975,307.71 = 308,330.58 : x
  2. Step 2: Convert to fraction form
    649,885.91/975,307.71 = 308,330.58/x
  3. Step 3: Cross multiply
    649,885.91x = 975,307.71 × 308,330.58
  4. Step 4: Simplify right side
    649,885.91x = 300,717,191,902.77
  5. Step 5: Solve for x
    x = 300,717,191,902.77/649,885.91
  6. Step 6: Final answer
    x = 462,723.06

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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.