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Finding the Fourth Proportional to 558,011.64, 770,064.84 and 303,363.84

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Solution

The fourth proportional to 558,011.64, 770,064.84 and 303,363.84 is: 418,646.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,011.64 : 770,064.84 = 303,363.84 : x
  2. Step 2: Convert to fraction form
    558,011.64/770,064.84 = 303,363.84/x
  3. Step 3: Cross multiply
    558,011.64x = 770,064.84 × 303,363.84
  4. Step 4: Simplify right side
    558,011.64x = 233,609,826,911.39
  5. Step 5: Solve for x
    x = 233,609,826,911.39/558,011.64
  6. Step 6: Final answer
    x = 418,646.87

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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.