Home / 727,647.60-1,004,227.60-405,410.16

Finding the Fourth Proportional to 727,647.60, 1,004,227.60 and 405,410.16

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Solution

The fourth proportional to 727,647.60, 1,004,227.60 and 405,410.16 is: 559,507.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,647.60 : 1,004,227.60 = 405,410.16 : x
  2. Step 2: Convert to fraction form
    727,647.60/1,004,227.60 = 405,410.16/x
  3. Step 3: Cross multiply
    727,647.60x = 1,004,227.60 × 405,410.16
  4. Step 4: Simplify right side
    727,647.60x = 407,124,071,992.42
  5. Step 5: Solve for x
    x = 407,124,071,992.42/727,647.60
  6. Step 6: Final answer
    x = 559,507.20

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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.