Home / 1,287,606.69-1,776,897.14-714,646.71

Finding the Fourth Proportional to 1,287,606.69, 1,776,897.14 and 714,646.71

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Solution

The fourth proportional to 1,287,606.69, 1,776,897.14 and 714,646.71 is: 986,212.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,606.69 : 1,776,897.14 = 714,646.71 : x
  2. Step 2: Convert to fraction form
    1,287,606.69/1,776,897.14 = 714,646.71/x
  3. Step 3: Cross multiply
    1,287,606.69x = 1,776,897.14 × 714,646.71
  4. Step 4: Simplify right side
    1,287,606.69x = 1,269,853,691,536.18
  5. Step 5: Solve for x
    x = 1,269,853,691,536.18/1,287,606.69
  6. Step 6: Final answer
    x = 986,212.41

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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.