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Finding the Fourth Proportional to 670.41, 999.81 and 573.51

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Solution

The fourth proportional to 670.41, 999.81 and 573.51 is: 855.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    670.41 : 999.81 = 573.51 : x
  2. Step 2: Convert to fraction form
    670.41/999.81 = 573.51/x
  3. Step 3: Cross multiply
    670.41x = 999.81 × 573.51
  4. Step 4: Simplify right side
    670.41x = 573,401.03
  5. Step 5: Solve for x
    x = 573,401.03/670.41
  6. Step 6: Final answer
    x = 855.30

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.