Home / 723,143.20-1,084,887.60-348,858.40

Finding the Fourth Proportional to 723,143.20, 1,084,887.60 and 348,858.40

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Solution

The fourth proportional to 723,143.20, 1,084,887.60 and 348,858.40 is: 523,370.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,143.20 : 1,084,887.60 = 348,858.40 : x
  2. Step 2: Convert to fraction form
    723,143.20/1,084,887.60 = 348,858.40/x
  3. Step 3: Cross multiply
    723,143.20x = 1,084,887.60 × 348,858.40
  4. Step 4: Simplify right side
    723,143.20x = 378,472,152,315.84
  5. Step 5: Solve for x
    x = 378,472,152,315.84/723,143.20
  6. Step 6: Final answer
    x = 523,370.96

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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.