Home / 498,148.60-687,237.06-326,108.68

Finding the Fourth Proportional to 498,148.60, 687,237.06 and 326,108.68

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Solution

The fourth proportional to 498,148.60, 687,237.06 and 326,108.68 is: 449,893.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,148.60 : 687,237.06 = 326,108.68 : x
  2. Step 2: Convert to fraction form
    498,148.60/687,237.06 = 326,108.68/x
  3. Step 3: Cross multiply
    498,148.60x = 687,237.06 × 326,108.68
  4. Step 4: Simplify right side
    498,148.60x = 224,113,970,483.68
  5. Step 5: Solve for x
    x = 224,113,970,483.68/498,148.60
  6. Step 6: Final answer
    x = 449,893.81

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1.5x scale

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.