Home / 813,587.86-1,122,751.23-451,010.80

Finding the Fourth Proportional to 813,587.86, 1,122,751.23 and 451,010.80

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Solution

The fourth proportional to 813,587.86, 1,122,751.23 and 451,010.80 is: 622,394.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,587.86 : 1,122,751.23 = 451,010.80 : x
  2. Step 2: Convert to fraction form
    813,587.86/1,122,751.23 = 451,010.80/x
  3. Step 3: Cross multiply
    813,587.86x = 1,122,751.23 × 451,010.80
  4. Step 4: Simplify right side
    813,587.86x = 506,372,930,443.28
  5. Step 5: Solve for x
    x = 506,372,930,443.28/813,587.86
  6. Step 6: Final answer
    x = 622,394.89

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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.