Home / 1,118,686.07-1,543,671.72-628,577.75

Finding the Fourth Proportional to 1,118,686.07, 1,543,671.72 and 628,577.75

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Solution

The fourth proportional to 1,118,686.07, 1,543,671.72 and 628,577.75 is: 867,372.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,686.07 : 1,543,671.72 = 628,577.75 : x
  2. Step 2: Convert to fraction form
    1,118,686.07/1,543,671.72 = 628,577.75/x
  3. Step 3: Cross multiply
    1,118,686.07x = 1,543,671.72 × 628,577.75
  4. Step 4: Simplify right side
    1,118,686.07x = 970,317,688,777.87
  5. Step 5: Solve for x
    x = 970,317,688,777.87/1,118,686.07
  6. Step 6: Final answer
    x = 867,372.64

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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.