Home / 1,081,056.96-1,621,849.68-761,831.52

Finding the Fourth Proportional to 1,081,056.96, 1,621,849.68 and 761,831.52

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Solution

The fourth proportional to 1,081,056.96, 1,621,849.68 and 761,831.52 is: 1,142,933.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081,056.96 : 1,621,849.68 = 761,831.52 : x
  2. Step 2: Convert to fraction form
    1,081,056.96/1,621,849.68 = 761,831.52/x
  3. Step 3: Cross multiply
    1,081,056.96x = 1,621,849.68 × 761,831.52
  4. Step 4: Simplify right side
    1,081,056.96x = 1,235,576,206,925.91
  5. Step 5: Solve for x
    x = 1,235,576,206,925.91/1,081,056.96
  6. Step 6: Final answer
    x = 1,142,933.49

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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.