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Finding the Fourth Proportional to 658,446.49, 986,907.31 and 302,713.93

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Solution

The fourth proportional to 658,446.49, 986,907.31 and 302,713.93 is: 453,720.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,446.49 : 986,907.31 = 302,713.93 : x
  2. Step 2: Convert to fraction form
    658,446.49/986,907.31 = 302,713.93/x
  3. Step 3: Cross multiply
    658,446.49x = 986,907.31 × 302,713.93
  4. Step 4: Simplify right side
    658,446.49x = 298,750,590,355.83
  5. Step 5: Solve for x
    x = 298,750,590,355.83/658,446.49
  6. Step 6: Final answer
    x = 453,720.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.