Home / 805,218.80-1,207,828.20-525,282.80

Finding the Fourth Proportional to 805,218.80, 1,207,828.20 and 525,282.80

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Solution

The fourth proportional to 805,218.80, 1,207,828.20 and 525,282.80 is: 787,924.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,218.80 : 1,207,828.20 = 525,282.80 : x
  2. Step 2: Convert to fraction form
    805,218.80/1,207,828.20 = 525,282.80/x
  3. Step 3: Cross multiply
    805,218.80x = 1,207,828.20 × 525,282.80
  4. Step 4: Simplify right side
    805,218.80x = 634,451,378,814.96
  5. Step 5: Solve for x
    x = 634,451,378,814.96/805,218.80
  6. Step 6: Final answer
    x = 787,924.20

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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.