Home / 1,008,047.10-1,515,181.05-989,384.70

Finding the Fourth Proportional to 1,008,047.10, 1,515,181.05 and 989,384.70

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Solution

The fourth proportional to 1,008,047.10, 1,515,181.05 and 989,384.70 is: 1,487,129.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,047.10 : 1,515,181.05 = 989,384.70 : x
  2. Step 2: Convert to fraction form
    1,008,047.10/1,515,181.05 = 989,384.70/x
  3. Step 3: Cross multiply
    1,008,047.10x = 1,515,181.05 × 989,384.70
  4. Step 4: Simplify right side
    1,008,047.10x = 1,499,096,948,599.94
  5. Step 5: Solve for x
    x = 1,499,096,948,599.94/1,008,047.10
  6. Step 6: Final answer
    x = 1,487,129.87

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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.