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Finding the Fourth Proportional to 558,089.40, 770,154.30 and 303,447

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Solution

The fourth proportional to 558,089.40, 770,154.30 and 303,447 is: 418,751.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,089.40 : 770,154.30 = 303,447 : x
  2. Step 2: Convert to fraction form
    558,089.40/770,154.30 = 303,447/x
  3. Step 3: Cross multiply
    558,089.40x = 770,154.30 × 303,447
  4. Step 4: Simplify right side
    558,089.40x = 233,701,011,872.10
  5. Step 5: Solve for x
    x = 233,701,011,872.10/558,089.40
  6. Step 6: Final answer
    x = 418,751.93

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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.