Home / 806,493.20-1,209,739.80-557,661.20

Finding the Fourth Proportional to 806,493.20, 1,209,739.80 and 557,661.20

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Solution

The fourth proportional to 806,493.20, 1,209,739.80 and 557,661.20 is: 836,491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,493.20 : 1,209,739.80 = 557,661.20 : x
  2. Step 2: Convert to fraction form
    806,493.20/1,209,739.80 = 557,661.20/x
  3. Step 3: Cross multiply
    806,493.20x = 1,209,739.80 × 557,661.20
  4. Step 4: Simplify right side
    806,493.20x = 674,624,948,555.76
  5. Step 5: Solve for x
    x = 674,624,948,555.76/806,493.20
  6. Step 6: Final answer
    x = 836,491.80

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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.