Home / 1,087,681.69-1,501,139.13-657,964.90

Finding the Fourth Proportional to 1,087,681.69, 1,501,139.13 and 657,964.90

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Solution

The fourth proportional to 1,087,681.69, 1,501,139.13 and 657,964.90 is: 908,075.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,681.69 : 1,501,139.13 = 657,964.90 : x
  2. Step 2: Convert to fraction form
    1,087,681.69/1,501,139.13 = 657,964.90/x
  3. Step 3: Cross multiply
    1,087,681.69x = 1,501,139.13 × 657,964.90
  4. Step 4: Simplify right side
    1,087,681.69x = 987,696,857,556.54
  5. Step 5: Solve for x
    x = 987,696,857,556.54/1,087,681.69
  6. Step 6: Final answer
    x = 908,075.28

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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.