Home / 818,330.90-1,128,991.05-817,069.34

Finding the Fourth Proportional to 818,330.90, 1,128,991.05 and 817,069.34

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Solution

The fourth proportional to 818,330.90, 1,128,991.05 and 817,069.34 is: 1,127,250.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,330.90 : 1,128,991.05 = 817,069.34 : x
  2. Step 2: Convert to fraction form
    818,330.90/1,128,991.05 = 817,069.34/x
  3. Step 3: Cross multiply
    818,330.90x = 1,128,991.05 × 817,069.34
  4. Step 4: Simplify right side
    818,330.90x = 922,463,972,089.41
  5. Step 5: Solve for x
    x = 922,463,972,089.41/818,330.90
  6. Step 6: Final answer
    x = 1,127,250.57

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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.