Home / 677,606.72-1,015,054.81-407,585.72

Finding the Fourth Proportional to 677,606.72, 1,015,054.81 and 407,585.72

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Solution

The fourth proportional to 677,606.72, 1,015,054.81 and 407,585.72 is: 610,563.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,606.72 : 1,015,054.81 = 407,585.72 : x
  2. Step 2: Convert to fraction form
    677,606.72/1,015,054.81 = 407,585.72/x
  3. Step 3: Cross multiply
    677,606.72x = 1,015,054.81 × 407,585.72
  4. Step 4: Simplify right side
    677,606.72x = 413,721,847,091.99
  5. Step 5: Solve for x
    x = 413,721,847,091.99/677,606.72
  6. Step 6: Final answer
    x = 610,563.38

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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.