Home / 1,223,548.36-1,688,449.82-679,718.34

Finding the Fourth Proportional to 1,223,548.36, 1,688,449.82 and 679,718.34

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Solution

The fourth proportional to 1,223,548.36, 1,688,449.82 and 679,718.34 is: 937,985.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,548.36 : 1,688,449.82 = 679,718.34 : x
  2. Step 2: Convert to fraction form
    1,223,548.36/1,688,449.82 = 679,718.34/x
  3. Step 3: Cross multiply
    1,223,548.36x = 1,688,449.82 × 679,718.34
  4. Step 4: Simplify right side
    1,223,548.36x = 1,147,670,305,425.11
  5. Step 5: Solve for x
    x = 1,147,670,305,425.11/1,223,548.36
  6. Step 6: Final answer
    x = 937,985.24

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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.