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Finding the Fourth Proportional to 564,919.40, 850,457.03 and 487,781.48

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Solution

The fourth proportional to 564,919.40, 850,457.03 and 487,781.48 is: 734,329.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,919.40 : 850,457.03 = 487,781.48 : x
  2. Step 2: Convert to fraction form
    564,919.40/850,457.03 = 487,781.48/x
  3. Step 3: Cross multiply
    564,919.40x = 850,457.03 × 487,781.48
  4. Step 4: Simplify right side
    564,919.40x = 414,837,188,769.80
  5. Step 5: Solve for x
    x = 414,837,188,769.80/564,919.40
  6. Step 6: Final answer
    x = 734,329.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.