Home / 1,039,709.86-1,556,016.36-871,420.18

Finding the Fourth Proportional to 1,039,709.86, 1,556,016.36 and 871,420.18

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Solution

The fourth proportional to 1,039,709.86, 1,556,016.36 and 871,420.18 is: 1,304,156.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,709.86 : 1,556,016.36 = 871,420.18 : x
  2. Step 2: Convert to fraction form
    1,039,709.86/1,556,016.36 = 871,420.18/x
  3. Step 3: Cross multiply
    1,039,709.86x = 1,556,016.36 × 871,420.18
  4. Step 4: Simplify right side
    1,039,709.86x = 1,355,944,056,514.15
  5. Step 5: Solve for x
    x = 1,355,944,056,514.15/1,039,709.86
  6. Step 6: Final answer
    x = 1,304,156.20

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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.