Home / 1,384,792.96-2,076,981.64-438,040.66

Finding the Fourth Proportional to 1,384,792.96, 2,076,981.64 and 438,040.66

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Solution

The fourth proportional to 1,384,792.96, 2,076,981.64 and 438,040.66 is: 656,995.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,792.96 : 2,076,981.64 = 438,040.66 : x
  2. Step 2: Convert to fraction form
    1,384,792.96/2,076,981.64 = 438,040.66/x
  3. Step 3: Cross multiply
    1,384,792.96x = 2,076,981.64 × 438,040.66
  4. Step 4: Simplify right side
    1,384,792.96x = 909,802,402,105.93
  5. Step 5: Solve for x
    x = 909,802,402,105.93/1,384,792.96
  6. Step 6: Final answer
    x = 656,995.25

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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.