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Finding the Fourth Proportional to 601,985.31, 830,622.75 and 356,924.79

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Solution

The fourth proportional to 601,985.31, 830,622.75 and 356,924.79 is: 492,486.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,985.31 : 830,622.75 = 356,924.79 : x
  2. Step 2: Convert to fraction form
    601,985.31/830,622.75 = 356,924.79/x
  3. Step 3: Cross multiply
    601,985.31x = 830,622.75 × 356,924.79
  4. Step 4: Simplify right side
    601,985.31x = 296,469,846,159.67
  5. Step 5: Solve for x
    x = 296,469,846,159.67/601,985.31
  6. Step 6: Final answer
    x = 492,486.84

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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.