Home / 347,660.40-521,490.60-268,928.40

Finding the Fourth Proportional to 347,660.40, 521,490.60 and 268,928.40

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Solution

The fourth proportional to 347,660.40, 521,490.60 and 268,928.40 is: 403,392.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,660.40 : 521,490.60 = 268,928.40 : x
  2. Step 2: Convert to fraction form
    347,660.40/521,490.60 = 268,928.40/x
  3. Step 3: Cross multiply
    347,660.40x = 521,490.60 × 268,928.40
  4. Step 4: Simplify right side
    347,660.40x = 140,243,632,673.04
  5. Step 5: Solve for x
    x = 140,243,632,673.04/347,660.40
  6. Step 6: Final answer
    x = 403,392.60

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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.