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Finding the Fourth Proportional to 561.44, 837.15 and 525.80

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Solution

The fourth proportional to 561.44, 837.15 and 525.80 is: 784.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    561.44 : 837.15 = 525.80 : x
  2. Step 2: Convert to fraction form
    561.44/837.15 = 525.80/x
  3. Step 3: Cross multiply
    561.44x = 837.15 × 525.80
  4. Step 4: Simplify right side
    561.44x = 440,170.84
  5. Step 5: Solve for x
    x = 440,170.84/561.44
  6. Step 6: Final answer
    x = 784.00

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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.