Home / 687,531.24-948,803.22-381,627.32

Finding the Fourth Proportional to 687,531.24, 948,803.22 and 381,627.32

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Solution

The fourth proportional to 687,531.24, 948,803.22 and 381,627.32 is: 526,651.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,531.24 : 948,803.22 = 381,627.32 : x
  2. Step 2: Convert to fraction form
    687,531.24/948,803.22 = 381,627.32/x
  3. Step 3: Cross multiply
    687,531.24x = 948,803.22 × 381,627.32
  4. Step 4: Simplify right side
    687,531.24x = 362,089,225,311.95
  5. Step 5: Solve for x
    x = 362,089,225,311.95/687,531.24
  6. Step 6: Final answer
    x = 526,651.31

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Why These Related Problems?

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