Home / 1,537,115.40-2,305,757.20-638,648

Finding the Fourth Proportional to 1,537,115.40, 2,305,757.20 and 638,648

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Solution

The fourth proportional to 1,537,115.40, 2,305,757.20 and 638,648 is: 958,006.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,537,115.40 : 2,305,757.20 = 638,648 : x
  2. Step 2: Convert to fraction form
    1,537,115.40/2,305,757.20 = 638,648/x
  3. Step 3: Cross multiply
    1,537,115.40x = 2,305,757.20 × 638,648
  4. Step 4: Simplify right side
    1,537,115.40x = 1,472,567,224,265.60
  5. Step 5: Solve for x
    x = 1,472,567,224,265.60/1,537,115.40
  6. Step 6: Final answer
    x = 958,006.94

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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.