Home / 818,215.29-1,129,485.47-550,098.81

Finding the Fourth Proportional to 818,215.29, 1,129,485.47 and 550,098.81

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Solution

The fourth proportional to 818,215.29, 1,129,485.47 and 550,098.81 is: 759,370.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,215.29 : 1,129,485.47 = 550,098.81 : x
  2. Step 2: Convert to fraction form
    818,215.29/1,129,485.47 = 550,098.81/x
  3. Step 3: Cross multiply
    818,215.29x = 1,129,485.47 × 550,098.81
  4. Step 4: Simplify right side
    818,215.29x = 621,328,610,208.80
  5. Step 5: Solve for x
    x = 621,328,610,208.80/818,215.29
  6. Step 6: Final answer
    x = 759,370.57

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1.5x scale

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.