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Finding the Fourth Proportional to 398,823.60, 597,360.60 and 346,335.60

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Solution

The fourth proportional to 398,823.60, 597,360.60 and 346,335.60 is: 518,743.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,823.60 : 597,360.60 = 346,335.60 : x
  2. Step 2: Convert to fraction form
    398,823.60/597,360.60 = 346,335.60/x
  3. Step 3: Cross multiply
    398,823.60x = 597,360.60 × 346,335.60
  4. Step 4: Simplify right side
    398,823.60x = 206,887,241,817.36
  5. Step 5: Solve for x
    x = 206,887,241,817.36/398,823.60
  6. Step 6: Final answer
    x = 518,743.73

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1.5x scale

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.