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Finding the Fourth Proportional to 818.98, 1,130.04 and 598.12

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Solution

The fourth proportional to 818.98, 1,130.04 and 598.12 is: 825.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    818.98 : 1,130.04 = 598.12 : x
  2. Step 2: Convert to fraction form
    818.98/1,130.04 = 598.12/x
  3. Step 3: Cross multiply
    818.98x = 1,130.04 × 598.12
  4. Step 4: Simplify right side
    818.98x = 675,899.52
  5. Step 5: Solve for x
    x = 675,899.52/818.98
  6. Step 6: Final answer
    x = 825.29

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Double scale
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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.