Home / 818,133.35-1,129,013.26-450,603.43

Finding the Fourth Proportional to 818,133.35, 1,129,013.26 and 450,603.43

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Solution

The fourth proportional to 818,133.35, 1,129,013.26 and 450,603.43 is: 621,826.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,133.35 : 1,129,013.26 = 450,603.43 : x
  2. Step 2: Convert to fraction form
    818,133.35/1,129,013.26 = 450,603.43/x
  3. Step 3: Cross multiply
    818,133.35x = 1,129,013.26 × 450,603.43
  4. Step 4: Simplify right side
    818,133.35x = 508,737,247,471.48
  5. Step 5: Solve for x
    x = 508,737,247,471.48/818,133.35
  6. Step 6: Final answer
    x = 621,826.81

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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.