Home / 1,111,399.72-1,665,328.11-711,711.70

Finding the Fourth Proportional to 1,111,399.72, 1,665,328.11 and 711,711.70

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Solution

The fourth proportional to 1,111,399.72, 1,665,328.11 and 711,711.70 is: 1,066,433.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,399.72 : 1,665,328.11 = 711,711.70 : x
  2. Step 2: Convert to fraction form
    1,111,399.72/1,665,328.11 = 711,711.70/x
  3. Step 3: Cross multiply
    1,111,399.72x = 1,665,328.11 × 711,711.70
  4. Step 4: Simplify right side
    1,111,399.72x = 1,185,233,500,225.89
  5. Step 5: Solve for x
    x = 1,185,233,500,225.89/1,111,399.72
  6. Step 6: Final answer
    x = 1,066,433.15

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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.