Home / 990.02-1,484.12-527.11

Finding the Fourth Proportional to 990.02, 1,484.12 and 527.11

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Solution

The fourth proportional to 990.02, 1,484.12 and 527.11 is: 790.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    990.02 : 1,484.12 = 527.11 : x
  2. Step 2: Convert to fraction form
    990.02/1,484.12 = 527.11/x
  3. Step 3: Cross multiply
    990.02x = 1,484.12 × 527.11
  4. Step 4: Simplify right side
    990.02x = 782,292.10
  5. Step 5: Solve for x
    x = 782,292.10/990.02
  6. Step 6: Final answer
    x = 790.18

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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.