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Finding the Fourth Proportional to 803,611.02, 1,205,600.63 and 348,278.67

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Solution

The fourth proportional to 803,611.02, 1,205,600.63 and 348,278.67 is: 522,497.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,611.02 : 1,205,600.63 = 348,278.67 : x
  2. Step 2: Convert to fraction form
    803,611.02/1,205,600.63 = 348,278.67/x
  3. Step 3: Cross multiply
    803,611.02x = 1,205,600.63 × 348,278.67
  4. Step 4: Simplify right side
    803,611.02x = 419,884,982,226.17
  5. Step 5: Solve for x
    x = 419,884,982,226.17/803,611.02
  6. Step 6: Final answer
    x = 522,497.79

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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.