Home / 813,203.40-1,122,227.28-450,633.32

Finding the Fourth Proportional to 813,203.40, 1,122,227.28 and 450,633.32

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Solution

The fourth proportional to 813,203.40, 1,122,227.28 and 450,633.32 is: 621,877.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,203.40 : 1,122,227.28 = 450,633.32 : x
  2. Step 2: Convert to fraction form
    813,203.40/1,122,227.28 = 450,633.32/x
  3. Step 3: Cross multiply
    813,203.40x = 1,122,227.28 × 450,633.32
  4. Step 4: Simplify right side
    813,203.40x = 505,713,000,496.42
  5. Step 5: Solve for x
    x = 505,713,000,496.42/813,203.40
  6. Step 6: Final answer
    x = 621,877.63

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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.