Home / 679,804.22-1,018,787.75-258,850.46

Finding the Fourth Proportional to 679,804.22, 1,018,787.75 and 258,850.46

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Solution

The fourth proportional to 679,804.22, 1,018,787.75 and 258,850.46 is: 387,925.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,804.22 : 1,018,787.75 = 258,850.46 : x
  2. Step 2: Convert to fraction form
    679,804.22/1,018,787.75 = 258,850.46/x
  3. Step 3: Cross multiply
    679,804.22x = 1,018,787.75 × 258,850.46
  4. Step 4: Simplify right side
    679,804.22x = 263,713,673,283.05
  5. Step 5: Solve for x
    x = 263,713,673,283.05/679,804.22
  6. Step 6: Final answer
    x = 387,925.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.