Home / 905,215.20-1,356,901.20-531,045.60

Finding the Fourth Proportional to 905,215.20, 1,356,901.20 and 531,045.60

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Solution

The fourth proportional to 905,215.20, 1,356,901.20 and 531,045.60 is: 796,027.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,215.20 : 1,356,901.20 = 531,045.60 : x
  2. Step 2: Convert to fraction form
    905,215.20/1,356,901.20 = 531,045.60/x
  3. Step 3: Cross multiply
    905,215.20x = 1,356,901.20 × 531,045.60
  4. Step 4: Simplify right side
    905,215.20x = 720,576,411,894.72
  5. Step 5: Solve for x
    x = 720,576,411,894.72/905,215.20
  6. Step 6: Final answer
    x = 796,027.74

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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.