Home / 714,311.90-1,071,631.49-309,572.04

Finding the Fourth Proportional to 714,311.90, 1,071,631.49 and 309,572.04

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Solution

The fourth proportional to 714,311.90, 1,071,631.49 and 309,572.04 is: 464,428.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,311.90 : 1,071,631.49 = 309,572.04 : x
  2. Step 2: Convert to fraction form
    714,311.90/1,071,631.49 = 309,572.04/x
  3. Step 3: Cross multiply
    714,311.90x = 1,071,631.49 × 309,572.04
  4. Step 4: Simplify right side
    714,311.90x = 331,747,144,939.68
  5. Step 5: Solve for x
    x = 331,747,144,939.68/714,311.90
  6. Step 6: Final answer
    x = 464,428.98

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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.