Home / 699.02-1,047.46-351.38

Finding the Fourth Proportional to 699.02, 1,047.46 and 351.38

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Solution

The fourth proportional to 699.02, 1,047.46 and 351.38 is: 526.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    699.02 : 1,047.46 = 351.38 : x
  2. Step 2: Convert to fraction form
    699.02/1,047.46 = 351.38/x
  3. Step 3: Cross multiply
    699.02x = 1,047.46 × 351.38
  4. Step 4: Simplify right side
    699.02x = 368,056.49
  5. Step 5: Solve for x
    x = 368,056.49/699.02
  6. Step 6: Final answer
    x = 526.53

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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.