Home / 910,117.89-1,255,954.78-496,662.84

Finding the Fourth Proportional to 910,117.89, 1,255,954.78 and 496,662.84

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Solution

The fourth proportional to 910,117.89, 1,255,954.78 and 496,662.84 is: 685,390.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,117.89 : 1,255,954.78 = 496,662.84 : x
  2. Step 2: Convert to fraction form
    910,117.89/1,255,954.78 = 496,662.84/x
  3. Step 3: Cross multiply
    910,117.89x = 1,255,954.78 × 496,662.84
  4. Step 4: Simplify right side
    910,117.89x = 623,786,072,629.27
  5. Step 5: Solve for x
    x = 623,786,072,629.27/910,117.89
  6. Step 6: Final answer
    x = 685,390.41

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Double scale
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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.