Home / 1,369,300.80-1,889,489.64-757,356.36

Finding the Fourth Proportional to 1,369,300.80, 1,889,489.64 and 757,356.36

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Solution

The fourth proportional to 1,369,300.80, 1,889,489.64 and 757,356.36 is: 1,045,071.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,300.80 : 1,889,489.64 = 757,356.36 : x
  2. Step 2: Convert to fraction form
    1,369,300.80/1,889,489.64 = 757,356.36/x
  3. Step 3: Cross multiply
    1,369,300.80x = 1,889,489.64 × 757,356.36
  4. Step 4: Simplify right side
    1,369,300.80x = 1,431,016,996,008.11
  5. Step 5: Solve for x
    x = 1,431,016,996,008.11/1,369,300.80
  6. Step 6: Final answer
    x = 1,045,071.32

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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.