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Finding the Fourth Proportional to 370,824.40, 556,409.40 and 277,512.40

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Solution

The fourth proportional to 370,824.40, 556,409.40 and 277,512.40 is: 416,397.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,824.40 : 556,409.40 = 277,512.40 : x
  2. Step 2: Convert to fraction form
    370,824.40/556,409.40 = 277,512.40/x
  3. Step 3: Cross multiply
    370,824.40x = 556,409.40 × 277,512.40
  4. Step 4: Simplify right side
    370,824.40x = 154,410,507,976.56
  5. Step 5: Solve for x
    x = 154,410,507,976.56/370,824.40
  6. Step 6: Final answer
    x = 416,397.92

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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.