Home / 742,768.80-1,025,015.44-403,228.32

Finding the Fourth Proportional to 742,768.80, 1,025,015.44 and 403,228.32

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Solution

The fourth proportional to 742,768.80, 1,025,015.44 and 403,228.32 is: 556,452.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,768.80 : 1,025,015.44 = 403,228.32 : x
  2. Step 2: Convert to fraction form
    742,768.80/1,025,015.44 = 403,228.32/x
  3. Step 3: Cross multiply
    742,768.80x = 1,025,015.44 × 403,228.32
  4. Step 4: Simplify right side
    742,768.80x = 413,315,253,845.26
  5. Step 5: Solve for x
    x = 413,315,253,845.26/742,768.80
  6. Step 6: Final answer
    x = 556,452.09

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1.5x scale

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.