Home / 786,827.78-1,180,240.59-313,845.26

Finding the Fourth Proportional to 786,827.78, 1,180,240.59 and 313,845.26

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Solution

The fourth proportional to 786,827.78, 1,180,240.59 and 313,845.26 is: 470,767.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,827.78 : 1,180,240.59 = 313,845.26 : x
  2. Step 2: Convert to fraction form
    786,827.78/1,180,240.59 = 313,845.26/x
  3. Step 3: Cross multiply
    786,827.78x = 1,180,240.59 × 313,845.26
  4. Step 4: Simplify right side
    786,827.78x = 370,412,914,831.10
  5. Step 5: Solve for x
    x = 370,412,914,831.10/786,827.78
  6. Step 6: Final answer
    x = 470,767.46

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.