Home / 727,631.60-1,004,205.48-405,394.16

Finding the Fourth Proportional to 727,631.60, 1,004,205.48 and 405,394.16

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Solution

The fourth proportional to 727,631.60, 1,004,205.48 and 405,394.16 is: 559,485.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,631.60 : 1,004,205.48 = 405,394.16 : x
  2. Step 2: Convert to fraction form
    727,631.60/1,004,205.48 = 405,394.16/x
  3. Step 3: Cross multiply
    727,631.60x = 1,004,205.48 × 405,394.16
  4. Step 4: Simplify right side
    727,631.60x = 407,099,037,032.00
  5. Step 5: Solve for x
    x = 407,099,037,032.00/727,631.60
  6. Step 6: Final answer
    x = 559,485.10

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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.