Home / 1,056,138.40-1,584,193.20-346,189.60

Finding the Fourth Proportional to 1,056,138.40, 1,584,193.20 and 346,189.60

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Solution

The fourth proportional to 1,056,138.40, 1,584,193.20 and 346,189.60 is: 519,279.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056,138.40 : 1,584,193.20 = 346,189.60 : x
  2. Step 2: Convert to fraction form
    1,056,138.40/1,584,193.20 = 346,189.60/x
  3. Step 3: Cross multiply
    1,056,138.40x = 1,584,193.20 × 346,189.60
  4. Step 4: Simplify right side
    1,056,138.40x = 548,431,210,230.72
  5. Step 5: Solve for x
    x = 548,431,210,230.72/1,056,138.40
  6. Step 6: Final answer
    x = 519,279.68

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Double scale
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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.