Home / 1,081,056.84-1,621,849.56-761,831.40

Finding the Fourth Proportional to 1,081,056.84, 1,621,849.56 and 761,831.40

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Solution

The fourth proportional to 1,081,056.84, 1,621,849.56 and 761,831.40 is: 1,142,933.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081,056.84 : 1,621,849.56 = 761,831.40 : x
  2. Step 2: Convert to fraction form
    1,081,056.84/1,621,849.56 = 761,831.40/x
  3. Step 3: Cross multiply
    1,081,056.84x = 1,621,849.56 × 761,831.40
  4. Step 4: Simplify right side
    1,081,056.84x = 1,235,575,920,884.18
  5. Step 5: Solve for x
    x = 1,235,575,920,884.18/1,081,056.84
  6. Step 6: Final answer
    x = 1,142,933.35

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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.