Home / 858,048.68-1,184,138.98-518,451.24

Finding the Fourth Proportional to 858,048.68, 1,184,138.98 and 518,451.24

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Solution

The fourth proportional to 858,048.68, 1,184,138.98 and 518,451.24 is: 715,481.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,048.68 : 1,184,138.98 = 518,451.24 : x
  2. Step 2: Convert to fraction form
    858,048.68/1,184,138.98 = 518,451.24/x
  3. Step 3: Cross multiply
    858,048.68x = 1,184,138.98 × 518,451.24
  4. Step 4: Simplify right side
    858,048.68x = 613,918,322,513.34
  5. Step 5: Solve for x
    x = 613,918,322,513.34/858,048.68
  6. Step 6: Final answer
    x = 715,481.93

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Double scale
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Similar ratio
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1.5x scale

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.