Home / 523,629.40-785,444.10-485,138.20

Finding the Fourth Proportional to 523,629.40, 785,444.10 and 485,138.20

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Solution

The fourth proportional to 523,629.40, 785,444.10 and 485,138.20 is: 727,707.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,629.40 : 785,444.10 = 485,138.20 : x
  2. Step 2: Convert to fraction form
    523,629.40/785,444.10 = 485,138.20/x
  3. Step 3: Cross multiply
    523,629.40x = 785,444.10 × 485,138.20
  4. Step 4: Simplify right side
    523,629.40x = 381,048,936,874.62
  5. Step 5: Solve for x
    x = 381,048,936,874.62/523,629.40
  6. Step 6: Final answer
    x = 727,707.30

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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.