Home / 792,138.40-1,188,207.60-286,941.40

Finding the Fourth Proportional to 792,138.40, 1,188,207.60 and 286,941.40

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Solution

The fourth proportional to 792,138.40, 1,188,207.60 and 286,941.40 is: 430,412.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,138.40 : 1,188,207.60 = 286,941.40 : x
  2. Step 2: Convert to fraction form
    792,138.40/1,188,207.60 = 286,941.40/x
  3. Step 3: Cross multiply
    792,138.40x = 1,188,207.60 × 286,941.40
  4. Step 4: Simplify right side
    792,138.40x = 340,945,952,234.64
  5. Step 5: Solve for x
    x = 340,945,952,234.64/792,138.40
  6. Step 6: Final answer
    x = 430,412.10

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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.