Home / 728,240-1,004,559.60-455,835.02

Finding the Fourth Proportional to 728,240, 1,004,559.60 and 455,835.02

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Solution

The fourth proportional to 728,240, 1,004,559.60 and 455,835.02 is: 628,794.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,240 : 1,004,559.60 = 455,835.02 : x
  2. Step 2: Convert to fraction form
    728,240/1,004,559.60 = 455,835.02/x
  3. Step 3: Cross multiply
    728,240x = 1,004,559.60 × 455,835.02
  4. Step 4: Simplify right side
    728,240x = 457,913,445,357.19
  5. Step 5: Solve for x
    x = 457,913,445,357.19/728,240
  6. Step 6: Final answer
    x = 628,794.69

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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.