Home / 813,122.04-1,122,107.33-450,569.39

Finding the Fourth Proportional to 813,122.04, 1,122,107.33 and 450,569.39

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Solution

The fourth proportional to 813,122.04, 1,122,107.33 and 450,569.39 is: 621,785.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,122.04 : 1,122,107.33 = 450,569.39 : x
  2. Step 2: Convert to fraction form
    813,122.04/1,122,107.33 = 450,569.39/x
  3. Step 3: Cross multiply
    813,122.04x = 1,122,107.33 × 450,569.39
  4. Step 4: Simplify right side
    813,122.04x = 505,587,208,174.06
  5. Step 5: Solve for x
    x = 505,587,208,174.06/813,122.04
  6. Step 6: Final answer
    x = 621,785.15

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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.