Home / 813,245.52-1,122,323.76-450,661.80

Finding the Fourth Proportional to 813,245.52, 1,122,323.76 and 450,661.80

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Solution

The fourth proportional to 813,245.52, 1,122,323.76 and 450,661.80 is: 621,938.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,245.52 : 1,122,323.76 = 450,661.80 : x
  2. Step 2: Convert to fraction form
    813,245.52/1,122,323.76 = 450,661.80/x
  3. Step 3: Cross multiply
    813,245.52x = 1,122,323.76 × 450,661.80
  4. Step 4: Simplify right side
    813,245.52x = 505,788,445,864.37
  5. Step 5: Solve for x
    x = 505,788,445,864.37/813,245.52
  6. Step 6: Final answer
    x = 621,938.19

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Double scale
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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.