Home / 724,673.60-1,087,010.40-455,235.20

Finding the Fourth Proportional to 724,673.60, 1,087,010.40 and 455,235.20

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Solution

The fourth proportional to 724,673.60, 1,087,010.40 and 455,235.20 is: 682,852.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,673.60 : 1,087,010.40 = 455,235.20 : x
  2. Step 2: Convert to fraction form
    724,673.60/1,087,010.40 = 455,235.20/x
  3. Step 3: Cross multiply
    724,673.60x = 1,087,010.40 × 455,235.20
  4. Step 4: Simplify right side
    724,673.60x = 494,845,396,846.08
  5. Step 5: Solve for x
    x = 494,845,396,846.08/724,673.60
  6. Step 6: Final answer
    x = 682,852.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.