Home / 1,238,588.49-1,709,266.46-687,315.51

Finding the Fourth Proportional to 1,238,588.49, 1,709,266.46 and 687,315.51

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Solution

The fourth proportional to 1,238,588.49, 1,709,266.46 and 687,315.51 is: 948,503.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,588.49 : 1,709,266.46 = 687,315.51 : x
  2. Step 2: Convert to fraction form
    1,238,588.49/1,709,266.46 = 687,315.51/x
  3. Step 3: Cross multiply
    1,238,588.49x = 1,709,266.46 × 687,315.51
  4. Step 4: Simplify right side
    1,238,588.49x = 1,174,805,336,697.88
  5. Step 5: Solve for x
    x = 1,174,805,336,697.88/1,238,588.49
  6. Step 6: Final answer
    x = 948,503.36

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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.