Home / 730,019.77-1,007,416.57-407,734.33

Finding the Fourth Proportional to 730,019.77, 1,007,416.57 and 407,734.33

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Solution

The fourth proportional to 730,019.77, 1,007,416.57 and 407,734.33 is: 562,667.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,019.77 : 1,007,416.57 = 407,734.33 : x
  2. Step 2: Convert to fraction form
    730,019.77/1,007,416.57 = 407,734.33/x
  3. Step 3: Cross multiply
    730,019.77x = 1,007,416.57 × 407,734.33
  4. Step 4: Simplify right side
    730,019.77x = 410,758,320,199.85
  5. Step 5: Solve for x
    x = 410,758,320,199.85/730,019.77
  6. Step 6: Final answer
    x = 562,667.39

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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.