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Finding the Fourth Proportional to 558,544.32, 770,807.40 and 303,911.88

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Solution

The fourth proportional to 558,544.32, 770,807.40 and 303,911.88 is: 419,407.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,544.32 : 770,807.40 = 303,911.88 : x
  2. Step 2: Convert to fraction form
    558,544.32/770,807.40 = 303,911.88/x
  3. Step 3: Cross multiply
    558,544.32x = 770,807.40 × 303,911.88
  4. Step 4: Simplify right side
    558,544.32x = 234,257,526,051.91
  5. Step 5: Solve for x
    x = 234,257,526,051.91/558,544.32
  6. Step 6: Final answer
    x = 419,407.23

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1.5x scale

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.