Home / 790,866-1,186,053.66-285,361.20

Finding the Fourth Proportional to 790,866, 1,186,053.66 and 285,361.20

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Solution

The fourth proportional to 790,866, 1,186,053.66 and 285,361.20 is: 427,953.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,866 : 1,186,053.66 = 285,361.20 : x
  2. Step 2: Convert to fraction form
    790,866/1,186,053.66 = 285,361.20/x
  3. Step 3: Cross multiply
    790,866x = 1,186,053.66 × 285,361.20
  4. Step 4: Simplify right side
    790,866x = 338,453,695,681.99
  5. Step 5: Solve for x
    x = 338,453,695,681.99/790,866
  6. Step 6: Final answer
    x = 427,953.28

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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.