Home / 679,150.08-1,018,725.12-258,327.36

Finding the Fourth Proportional to 679,150.08, 1,018,725.12 and 258,327.36

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Solution

The fourth proportional to 679,150.08, 1,018,725.12 and 258,327.36 is: 387,491.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,150.08 : 1,018,725.12 = 258,327.36 : x
  2. Step 2: Convert to fraction form
    679,150.08/1,018,725.12 = 258,327.36/x
  3. Step 3: Cross multiply
    679,150.08x = 1,018,725.12 × 258,327.36
  4. Step 4: Simplify right side
    679,150.08x = 263,164,570,815.28
  5. Step 5: Solve for x
    x = 263,164,570,815.28/679,150.08
  6. Step 6: Final answer
    x = 387,491.04

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Similar ratio
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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.