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Finding the Fourth Proportional to 558,507, 770,743.08 and 303,860.04

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Solution

The fourth proportional to 558,507, 770,743.08 and 303,860.04 is: 419,328.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,507 : 770,743.08 = 303,860.04 : x
  2. Step 2: Convert to fraction form
    558,507/770,743.08 = 303,860.04/x
  3. Step 3: Cross multiply
    558,507x = 770,743.08 × 303,860.04
  4. Step 4: Simplify right side
    558,507x = 234,198,023,118.52
  5. Step 5: Solve for x
    x = 234,198,023,118.52/558,507
  6. Step 6: Final answer
    x = 419,328.72

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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.