Home / 1,118,118.48-1,543,028.84-634,638.40

Finding the Fourth Proportional to 1,118,118.48, 1,543,028.84 and 634,638.40

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Solution

The fourth proportional to 1,118,118.48, 1,543,028.84 and 634,638.40 is: 875,815.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,118.48 : 1,543,028.84 = 634,638.40 : x
  2. Step 2: Convert to fraction form
    1,118,118.48/1,543,028.84 = 634,638.40/x
  3. Step 3: Cross multiply
    1,118,118.48x = 1,543,028.84 × 634,638.40
  4. Step 4: Simplify right side
    1,118,118.48x = 979,265,354,171.46
  5. Step 5: Solve for x
    x = 979,265,354,171.46/1,118,118.48
  6. Step 6: Final answer
    x = 875,815.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.