Home / 727,970.86-1,004,600.74-405,673.88

Finding the Fourth Proportional to 727,970.86, 1,004,600.74 and 405,673.88

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Solution

The fourth proportional to 727,970.86, 1,004,600.74 and 405,673.88 is: 559,830.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,970.86 : 1,004,600.74 = 405,673.88 : x
  2. Step 2: Convert to fraction form
    727,970.86/1,004,600.74 = 405,673.88/x
  3. Step 3: Cross multiply
    727,970.86x = 1,004,600.74 × 405,673.88
  4. Step 4: Simplify right side
    727,970.86x = 407,540,280,046.67
  5. Step 5: Solve for x
    x = 407,540,280,046.67/727,970.86
  6. Step 6: Final answer
    x = 559,830.49

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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.