Home / 724,992.40-1,087,877.40-304,310.80

Finding the Fourth Proportional to 724,992.40, 1,087,877.40 and 304,310.80

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Solution

The fourth proportional to 724,992.40, 1,087,877.40 and 304,310.80 is: 456,629.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,992.40 : 1,087,877.40 = 304,310.80 : x
  2. Step 2: Convert to fraction form
    724,992.40/1,087,877.40 = 304,310.80/x
  3. Step 3: Cross multiply
    724,992.40x = 1,087,877.40 × 304,310.80
  4. Step 4: Simplify right side
    724,992.40x = 331,052,841,895.92
  5. Step 5: Solve for x
    x = 331,052,841,895.92/724,992.40
  6. Step 6: Final answer
    x = 456,629.40

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Double scale
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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.