Home / 660,864.32-911,963.04-374,378.56

Finding the Fourth Proportional to 660,864.32, 911,963.04 and 374,378.56

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Solution

The fourth proportional to 660,864.32, 911,963.04 and 374,378.56 is: 516,625.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,864.32 : 911,963.04 = 374,378.56 : x
  2. Step 2: Convert to fraction form
    660,864.32/911,963.04 = 374,378.56/x
  3. Step 3: Cross multiply
    660,864.32x = 911,963.04 × 374,378.56
  4. Step 4: Simplify right side
    660,864.32x = 341,419,409,688.42
  5. Step 5: Solve for x
    x = 341,419,409,688.42/660,864.32
  6. Step 6: Final answer
    x = 516,625.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.