Home / 568,140.48-784,029.32-310,011.60

Finding the Fourth Proportional to 568,140.48, 784,029.32 and 310,011.60

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Solution

The fourth proportional to 568,140.48, 784,029.32 and 310,011.60 is: 427,813.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,140.48 : 784,029.32 = 310,011.60 : x
  2. Step 2: Convert to fraction form
    568,140.48/784,029.32 = 310,011.60/x
  3. Step 3: Cross multiply
    568,140.48x = 784,029.32 × 310,011.60
  4. Step 4: Simplify right side
    568,140.48x = 243,058,188,236.52
  5. Step 5: Solve for x
    x = 243,058,188,236.52/568,140.48
  6. Step 6: Final answer
    x = 427,813.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.