Home / 1,152,002.64-1,589,764.64-642,705.12

Finding the Fourth Proportional to 1,152,002.64, 1,589,764.64 and 642,705.12

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Solution

The fourth proportional to 1,152,002.64, 1,589,764.64 and 642,705.12 is: 886,933.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,002.64 : 1,589,764.64 = 642,705.12 : x
  2. Step 2: Convert to fraction form
    1,152,002.64/1,589,764.64 = 642,705.12/x
  3. Step 3: Cross multiply
    1,152,002.64x = 1,589,764.64 × 642,705.12
  4. Step 4: Simplify right side
    1,152,002.64x = 1,021,749,873,722.96
  5. Step 5: Solve for x
    x = 1,021,749,873,722.96/1,152,002.64
  6. Step 6: Final answer
    x = 886,933.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.