Home / 1,019,942.20-1,529,913.30-918,465.40

Finding the Fourth Proportional to 1,019,942.20, 1,529,913.30 and 918,465.40

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Solution

The fourth proportional to 1,019,942.20, 1,529,913.30 and 918,465.40 is: 1,377,698.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,942.20 : 1,529,913.30 = 918,465.40 : x
  2. Step 2: Convert to fraction form
    1,019,942.20/1,529,913.30 = 918,465.40/x
  3. Step 3: Cross multiply
    1,019,942.20x = 1,529,913.30 × 918,465.40
  4. Step 4: Simplify right side
    1,019,942.20x = 1,405,172,431,049.82
  5. Step 5: Solve for x
    x = 1,405,172,431,049.82/1,019,942.20
  6. Step 6: Final answer
    x = 1,377,698.10

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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.