Home / 986,573.54-1,479,901.83-312,681.43

Finding the Fourth Proportional to 986,573.54, 1,479,901.83 and 312,681.43

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Solution

The fourth proportional to 986,573.54, 1,479,901.83 and 312,681.43 is: 469,035.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,573.54 : 1,479,901.83 = 312,681.43 : x
  2. Step 2: Convert to fraction form
    986,573.54/1,479,901.83 = 312,681.43/x
  3. Step 3: Cross multiply
    986,573.54x = 1,479,901.83 × 312,681.43
  4. Step 4: Simplify right side
    986,573.54x = 462,737,821,141.34
  5. Step 5: Solve for x
    x = 462,737,821,141.34/986,573.54
  6. Step 6: Final answer
    x = 469,035.31

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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.