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Finding the Fourth Proportional to 1,088.09, 1,501.58 and 615.99

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Solution

The fourth proportional to 1,088.09, 1,501.58 and 615.99 is: 850.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.09 : 1,501.58 = 615.99 : x
  2. Step 2: Convert to fraction form
    1,088.09/1,501.58 = 615.99/x
  3. Step 3: Cross multiply
    1,088.09x = 1,501.58 × 615.99
  4. Step 4: Simplify right side
    1,088.09x = 924,965.44
  5. Step 5: Solve for x
    x = 924,965.44/1,088.09
  6. Step 6: Final answer
    x = 850.08

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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.