Home / 996,431.40-1,493,116.20-742,520.70

Finding the Fourth Proportional to 996,431.40, 1,493,116.20 and 742,520.70

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Solution

The fourth proportional to 996,431.40, 1,493,116.20 and 742,520.70 is: 1,112,640.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,431.40 : 1,493,116.20 = 742,520.70 : x
  2. Step 2: Convert to fraction form
    996,431.40/1,493,116.20 = 742,520.70/x
  3. Step 3: Cross multiply
    996,431.40x = 1,493,116.20 × 742,520.70
  4. Step 4: Simplify right side
    996,431.40x = 1,108,669,686,005.34
  5. Step 5: Solve for x
    x = 1,108,669,686,005.34/996,431.40
  6. Step 6: Final answer
    x = 1,112,640.25

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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.