Home / 1,109,681.15-1,531,243.09-644,444.23

Finding the Fourth Proportional to 1,109,681.15, 1,531,243.09 and 644,444.23

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Solution

The fourth proportional to 1,109,681.15, 1,531,243.09 and 644,444.23 is: 889,265.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,681.15 : 1,531,243.09 = 644,444.23 : x
  2. Step 2: Convert to fraction form
    1,109,681.15/1,531,243.09 = 644,444.23/x
  3. Step 3: Cross multiply
    1,109,681.15x = 1,531,243.09 × 644,444.23
  4. Step 4: Simplify right side
    1,109,681.15x = 986,800,770,839.71
  5. Step 5: Solve for x
    x = 986,800,770,839.71/1,109,681.15
  6. Step 6: Final answer
    x = 889,265.15

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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.