Home / 813,239.74-1,122,273.48-450,669.58

Finding the Fourth Proportional to 813,239.74, 1,122,273.48 and 450,669.58

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Solution

The fourth proportional to 813,239.74, 1,122,273.48 and 450,669.58 is: 621,925.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,239.74 : 1,122,273.48 = 450,669.58 : x
  2. Step 2: Convert to fraction form
    813,239.74/1,122,273.48 = 450,669.58/x
  3. Step 3: Cross multiply
    813,239.74x = 1,122,273.48 × 450,669.58
  4. Step 4: Simplify right side
    813,239.74x = 505,774,517,876.74
  5. Step 5: Solve for x
    x = 505,774,517,876.74/813,239.74
  6. Step 6: Final answer
    x = 621,925.48

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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.