Home / 765,705.96-1,148,611.68-260,060.58

Finding the Fourth Proportional to 765,705.96, 1,148,611.68 and 260,060.58

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Solution

The fourth proportional to 765,705.96, 1,148,611.68 and 260,060.58 is: 390,108.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,705.96 : 1,148,611.68 = 260,060.58 : x
  2. Step 2: Convert to fraction form
    765,705.96/1,148,611.68 = 260,060.58/x
  3. Step 3: Cross multiply
    765,705.96x = 1,148,611.68 × 260,060.58
  4. Step 4: Simplify right side
    765,705.96x = 298,708,619,695.57
  5. Step 5: Solve for x
    x = 298,708,619,695.57/765,705.96
  6. Step 6: Final answer
    x = 390,108.78

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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.