Home / 786,218.76-1,084,981.86-446,687.40

Finding the Fourth Proportional to 786,218.76, 1,084,981.86 and 446,687.40

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Solution

The fourth proportional to 786,218.76, 1,084,981.86 and 446,687.40 is: 616,428.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,218.76 : 1,084,981.86 = 446,687.40 : x
  2. Step 2: Convert to fraction form
    786,218.76/1,084,981.86 = 446,687.40/x
  3. Step 3: Cross multiply
    786,218.76x = 1,084,981.86 × 446,687.40
  4. Step 4: Simplify right side
    786,218.76x = 484,647,726,090.56
  5. Step 5: Solve for x
    x = 484,647,726,090.56/786,218.76
  6. Step 6: Final answer
    x = 616,428.60

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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.