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Finding the Fourth Proportional to 570,621.08, 787,480.82 and 315,972.26

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Solution

The fourth proportional to 570,621.08, 787,480.82 and 315,972.26 is: 436,054.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,621.08 : 787,480.82 = 315,972.26 : x
  2. Step 2: Convert to fraction form
    570,621.08/787,480.82 = 315,972.26/x
  3. Step 3: Cross multiply
    570,621.08x = 787,480.82 × 315,972.26
  4. Step 4: Simplify right side
    570,621.08x = 248,822,094,402.05
  5. Step 5: Solve for x
    x = 248,822,094,402.05/570,621.08
  6. Step 6: Final answer
    x = 436,054.86

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.