Home / 1,308,002.80-1,805,537.10-764,315.28

Finding the Fourth Proportional to 1,308,002.80, 1,805,537.10 and 764,315.28

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Solution

The fourth proportional to 1,308,002.80, 1,805,537.10 and 764,315.28 is: 1,055,043.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,002.80 : 1,805,537.10 = 764,315.28 : x
  2. Step 2: Convert to fraction form
    1,308,002.80/1,805,537.10 = 764,315.28/x
  3. Step 3: Cross multiply
    1,308,002.80x = 1,805,537.10 × 764,315.28
  4. Step 4: Simplify right side
    1,308,002.80x = 1,379,999,594,136.89
  5. Step 5: Solve for x
    x = 1,379,999,594,136.89/1,308,002.80
  6. Step 6: Final answer
    x = 1,055,043.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.