Home / 708,157.40-1,062,678.96-287,433.27

Finding the Fourth Proportional to 708,157.40, 1,062,678.96 and 287,433.27

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Solution

The fourth proportional to 708,157.40, 1,062,678.96 and 287,433.27 is: 431,329.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,157.40 : 1,062,678.96 = 287,433.27 : x
  2. Step 2: Convert to fraction form
    708,157.40/1,062,678.96 = 287,433.27/x
  3. Step 3: Cross multiply
    708,157.40x = 1,062,678.96 × 287,433.27
  4. Step 4: Simplify right side
    708,157.40x = 305,449,288,433.00
  5. Step 5: Solve for x
    x = 305,449,288,433.00/708,157.40
  6. Step 6: Final answer
    x = 431,329.66

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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.