Home / 813,238.42-1,122,293.62-450,628.36

Finding the Fourth Proportional to 813,238.42, 1,122,293.62 and 450,628.36

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Solution

The fourth proportional to 813,238.42, 1,122,293.62 and 450,628.36 is: 621,880.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,238.42 : 1,122,293.62 = 450,628.36 : x
  2. Step 2: Convert to fraction form
    813,238.42/1,122,293.62 = 450,628.36/x
  3. Step 3: Cross multiply
    813,238.42x = 1,122,293.62 × 450,628.36
  4. Step 4: Simplify right side
    813,238.42x = 505,737,333,419.06
  5. Step 5: Solve for x
    x = 505,737,333,419.06/813,238.42
  6. Step 6: Final answer
    x = 621,880.77

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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.