Home / 714,318.48-1,071,641.28-309,578.64

Finding the Fourth Proportional to 714,318.48, 1,071,641.28 and 309,578.64

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Solution

The fourth proportional to 714,318.48, 1,071,641.28 and 309,578.64 is: 464,438.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,318.48 : 1,071,641.28 = 309,578.64 : x
  2. Step 2: Convert to fraction form
    714,318.48/1,071,641.28 = 309,578.64/x
  3. Step 3: Cross multiply
    714,318.48x = 1,071,641.28 × 309,578.64
  4. Step 4: Simplify right side
    714,318.48x = 331,757,250,030.26
  5. Step 5: Solve for x
    x = 331,757,250,030.26/714,318.48
  6. Step 6: Final answer
    x = 464,438.85

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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.