Home / 1,318,455.71-1,987,565.63-1,230,570.41

Finding the Fourth Proportional to 1,318,455.71, 1,987,565.63 and 1,230,570.41

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Solution

The fourth proportional to 1,318,455.71, 1,987,565.63 and 1,230,570.41 is: 1,855,078.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,455.71 : 1,987,565.63 = 1,230,570.41 : x
  2. Step 2: Convert to fraction form
    1,318,455.71/1,987,565.63 = 1,230,570.41/x
  3. Step 3: Cross multiply
    1,318,455.71x = 1,987,565.63 × 1,230,570.41
  4. Step 4: Simplify right side
    1,318,455.71x = 2,445,839,457,179.92
  5. Step 5: Solve for x
    x = 2,445,839,457,179.92/1,318,455.71
  6. Step 6: Final answer
    x = 1,855,078.97

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.