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Finding the Fourth Proportional to 347,357.60, 521,036.40 and 324,029.60

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Solution

The fourth proportional to 347,357.60, 521,036.40 and 324,029.60 is: 486,044.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,357.60 : 521,036.40 = 324,029.60 : x
  2. Step 2: Convert to fraction form
    347,357.60/521,036.40 = 324,029.60/x
  3. Step 3: Cross multiply
    347,357.60x = 521,036.40 × 324,029.60
  4. Step 4: Simplify right side
    347,357.60x = 168,831,216,277.44
  5. Step 5: Solve for x
    x = 168,831,216,277.44/347,357.60
  6. Step 6: Final answer
    x = 486,044.40

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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.