Home / 933,665.30-1,397,387.55-821,690.90

Finding the Fourth Proportional to 933,665.30, 1,397,387.55 and 821,690.90

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Solution

The fourth proportional to 933,665.30, 1,397,387.55 and 821,690.90 is: 1,229,798.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    933,665.30 : 1,397,387.55 = 821,690.90 : x
  2. Step 2: Convert to fraction form
    933,665.30/1,397,387.55 = 821,690.90/x
  3. Step 3: Cross multiply
    933,665.30x = 1,397,387.55 × 821,690.90
  4. Step 4: Simplify right side
    933,665.30x = 1,148,220,633,608.30
  5. Step 5: Solve for x
    x = 1,148,220,633,608.30/933,665.30
  6. Step 6: Final answer
    x = 1,229,798.98

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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.