Home / 990,259.92-1,485,150.84-457,268.58

Finding the Fourth Proportional to 990,259.92, 1,485,150.84 and 457,268.58

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Solution

The fourth proportional to 990,259.92, 1,485,150.84 and 457,268.58 is: 685,792.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,259.92 : 1,485,150.84 = 457,268.58 : x
  2. Step 2: Convert to fraction form
    990,259.92/1,485,150.84 = 457,268.58/x
  3. Step 3: Cross multiply
    990,259.92x = 1,485,150.84 × 457,268.58
  4. Step 4: Simplify right side
    990,259.92x = 679,112,815,692.61
  5. Step 5: Solve for x
    x = 679,112,815,692.61/990,259.92
  6. Step 6: Final answer
    x = 685,792.49

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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.