Home / 428,467.86-591,264.36-237,479.58

Finding the Fourth Proportional to 428,467.86, 591,264.36 and 237,479.58

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Solution

The fourth proportional to 428,467.86, 591,264.36 and 237,479.58 is: 327,710.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,467.86 : 591,264.36 = 237,479.58 : x
  2. Step 2: Convert to fraction form
    428,467.86/591,264.36 = 237,479.58/x
  3. Step 3: Cross multiply
    428,467.86x = 591,264.36 × 237,479.58
  4. Step 4: Simplify right side
    428,467.86x = 140,413,211,881.77
  5. Step 5: Solve for x
    x = 140,413,211,881.77/428,467.86
  6. Step 6: Final answer
    x = 327,710.02

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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.