Home / 813,256.70-1,122,280.54-450,679.82

Finding the Fourth Proportional to 813,256.70, 1,122,280.54 and 450,679.82

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Solution

The fourth proportional to 813,256.70, 1,122,280.54 and 450,679.82 is: 621,930.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,256.70 : 1,122,280.54 = 450,679.82 : x
  2. Step 2: Convert to fraction form
    813,256.70/1,122,280.54 = 450,679.82/x
  3. Step 3: Cross multiply
    813,256.70x = 1,122,280.54 × 450,679.82
  4. Step 4: Simplify right side
    813,256.70x = 505,789,185,018.60
  5. Step 5: Solve for x
    x = 505,789,185,018.60/813,256.70
  6. Step 6: Final answer
    x = 621,930.55

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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.