Home / 1,237,264.47-1,856,893.14-638,396.88

Finding the Fourth Proportional to 1,237,264.47, 1,856,893.14 and 638,396.88

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Solution

The fourth proportional to 1,237,264.47, 1,856,893.14 and 638,396.88 is: 958,109.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,264.47 : 1,856,893.14 = 638,396.88 : x
  2. Step 2: Convert to fraction form
    1,237,264.47/1,856,893.14 = 638,396.88/x
  3. Step 3: Cross multiply
    1,237,264.47x = 1,856,893.14 × 638,396.88
  4. Step 4: Simplify right side
    1,237,264.47x = 1,185,434,780,106.05
  5. Step 5: Solve for x
    x = 1,185,434,780,106.05/1,237,264.47
  6. Step 6: Final answer
    x = 958,109.45

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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.