Home / 878,153.10-1,317,317.28-238,467.24

Finding the Fourth Proportional to 878,153.10, 1,317,317.28 and 238,467.24

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Solution

The fourth proportional to 878,153.10, 1,317,317.28 and 238,467.24 is: 357,724.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,153.10 : 1,317,317.28 = 238,467.24 : x
  2. Step 2: Convert to fraction form
    878,153.10/1,317,317.28 = 238,467.24/x
  3. Step 3: Cross multiply
    878,153.10x = 1,317,317.28 × 238,467.24
  4. Step 4: Simplify right side
    878,153.10x = 314,137,015,071.66
  5. Step 5: Solve for x
    x = 314,137,015,071.66/878,153.10
  6. Step 6: Final answer
    x = 357,724.66

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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.