Home / 806,822.40-1,210,233.60-523,387.20

Finding the Fourth Proportional to 806,822.40, 1,210,233.60 and 523,387.20

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Solution

The fourth proportional to 806,822.40, 1,210,233.60 and 523,387.20 is: 785,080.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,822.40 : 1,210,233.60 = 523,387.20 : x
  2. Step 2: Convert to fraction form
    806,822.40/1,210,233.60 = 523,387.20/x
  3. Step 3: Cross multiply
    806,822.40x = 1,210,233.60 × 523,387.20
  4. Step 4: Simplify right side
    806,822.40x = 633,420,775,249.92
  5. Step 5: Solve for x
    x = 633,420,775,249.92/806,822.40
  6. Step 6: Final answer
    x = 785,080.80

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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.