Home / 1,223,238.62-1,688,073.21-679,374.32

Finding the Fourth Proportional to 1,223,238.62, 1,688,073.21 and 679,374.32

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Solution

The fourth proportional to 1,223,238.62, 1,688,073.21 and 679,374.32 is: 937,538.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,238.62 : 1,688,073.21 = 679,374.32 : x
  2. Step 2: Convert to fraction form
    1,223,238.62/1,688,073.21 = 679,374.32/x
  3. Step 3: Cross multiply
    1,223,238.62x = 1,688,073.21 × 679,374.32
  4. Step 4: Simplify right side
    1,223,238.62x = 1,146,833,580,713.60
  5. Step 5: Solve for x
    x = 1,146,833,580,713.60/1,223,238.62
  6. Step 6: Final answer
    x = 937,538.73

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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.