Home / 933,689.80-1,397,424.30-821,715.40

Finding the Fourth Proportional to 933,689.80, 1,397,424.30 and 821,715.40

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Solution

The fourth proportional to 933,689.80, 1,397,424.30 and 821,715.40 is: 1,229,835.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    933,689.80 : 1,397,424.30 = 821,715.40 : x
  2. Step 2: Convert to fraction form
    933,689.80/1,397,424.30 = 821,715.40/x
  3. Step 3: Cross multiply
    933,689.80x = 1,397,424.30 × 821,715.40
  4. Step 4: Simplify right side
    933,689.80x = 1,148,285,067,644.22
  5. Step 5: Solve for x
    x = 1,148,285,067,644.22/933,689.80
  6. Step 6: Final answer
    x = 1,229,835.72

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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.