Home / 1,019,013-1,528,519.32-457,391.40

Finding the Fourth Proportional to 1,019,013, 1,528,519.32 and 457,391.40

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Solution

The fourth proportional to 1,019,013, 1,528,519.32 and 457,391.40 is: 686,087.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,013 : 1,528,519.32 = 457,391.40 : x
  2. Step 2: Convert to fraction form
    1,019,013/1,528,519.32 = 457,391.40/x
  3. Step 3: Cross multiply
    1,019,013x = 1,528,519.32 × 457,391.40
  4. Step 4: Simplify right side
    1,019,013x = 699,131,591,701.85
  5. Step 5: Solve for x
    x = 699,131,591,701.85/1,019,013
  6. Step 6: Final answer
    x = 686,087.02

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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.