Home / 739,682.76-1,109,555.84-290,500.96

Finding the Fourth Proportional to 739,682.76, 1,109,555.84 and 290,500.96

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Solution

The fourth proportional to 739,682.76, 1,109,555.84 and 290,500.96 is: 435,763.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,682.76 : 1,109,555.84 = 290,500.96 : x
  2. Step 2: Convert to fraction form
    739,682.76/1,109,555.84 = 290,500.96/x
  3. Step 3: Cross multiply
    739,682.76x = 1,109,555.84 × 290,500.96
  4. Step 4: Simplify right side
    739,682.76x = 322,327,036,693.61
  5. Step 5: Solve for x
    x = 322,327,036,693.61/739,682.76
  6. Step 6: Final answer
    x = 435,763.89

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1.5x scale

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.