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Finding the Fourth Proportional to 841.36, 1,263.86 and 567.98

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Solution

The fourth proportional to 841.36, 1,263.86 and 567.98 is: 853.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    841.36 : 1,263.86 = 567.98 : x
  2. Step 2: Convert to fraction form
    841.36/1,263.86 = 567.98/x
  3. Step 3: Cross multiply
    841.36x = 1,263.86 × 567.98
  4. Step 4: Simplify right side
    841.36x = 717,847.20
  5. Step 5: Solve for x
    x = 717,847.20/841.36
  6. Step 6: Final answer
    x = 853.20

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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.