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Finding the Fourth Proportional to 558,599.94, 770,865.80 and 316,929.15

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Solution

The fourth proportional to 558,599.94, 770,865.80 and 316,929.15 is: 437,361.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,599.94 : 770,865.80 = 316,929.15 : x
  2. Step 2: Convert to fraction form
    558,599.94/770,865.80 = 316,929.15/x
  3. Step 3: Cross multiply
    558,599.94x = 770,865.80 × 316,929.15
  4. Step 4: Simplify right side
    558,599.94x = 244,309,841,173.42
  5. Step 5: Solve for x
    x = 244,309,841,173.42/558,599.94
  6. Step 6: Final answer
    x = 437,361.02

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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.