Home / 1,369,645.30-1,889,651.52-788,856.81

Finding the Fourth Proportional to 1,369,645.30, 1,889,651.52 and 788,856.81

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Solution

The fourth proportional to 1,369,645.30, 1,889,651.52 and 788,856.81 is: 1,088,358.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,645.30 : 1,889,651.52 = 788,856.81 : x
  2. Step 2: Convert to fraction form
    1,369,645.30/1,889,651.52 = 788,856.81/x
  3. Step 3: Cross multiply
    1,369,645.30x = 1,889,651.52 × 788,856.81
  4. Step 4: Simplify right side
    1,369,645.30x = 1,490,664,470,078.85
  5. Step 5: Solve for x
    x = 1,490,664,470,078.85/1,369,645.30
  6. Step 6: Final answer
    x = 1,088,358.04

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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.