Home / 727,810.68-1,004,365.41-405,513.86

Finding the Fourth Proportional to 727,810.68, 1,004,365.41 and 405,513.86

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Solution

The fourth proportional to 727,810.68, 1,004,365.41 and 405,513.86 is: 559,601.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,810.68 : 1,004,365.41 = 405,513.86 : x
  2. Step 2: Convert to fraction form
    727,810.68/1,004,365.41 = 405,513.86/x
  3. Step 3: Cross multiply
    727,810.68x = 1,004,365.41 × 405,513.86
  4. Step 4: Simplify right side
    727,810.68x = 407,284,094,259.58
  5. Step 5: Solve for x
    x = 407,284,094,259.58/727,810.68
  6. Step 6: Final answer
    x = 559,601.70

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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.