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Finding the Fourth Proportional to 986,602.20, 1,479,903.30 and 897,955.80

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Solution

The fourth proportional to 986,602.20, 1,479,903.30 and 897,955.80 is: 1,346,933.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,602.20 : 1,479,903.30 = 897,955.80 : x
  2. Step 2: Convert to fraction form
    986,602.20/1,479,903.30 = 897,955.80/x
  3. Step 3: Cross multiply
    986,602.20x = 1,479,903.30 × 897,955.80
  4. Step 4: Simplify right side
    986,602.20x = 1,328,887,751,674.14
  5. Step 5: Solve for x
    x = 1,328,887,751,674.14/986,602.20
  6. Step 6: Final answer
    x = 1,346,933.70

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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.