Home / 1,442,174.77-1,990,120.65-788,671.83

Finding the Fourth Proportional to 1,442,174.77, 1,990,120.65 and 788,671.83

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Solution

The fourth proportional to 1,442,174.77, 1,990,120.65 and 788,671.83 is: 1,088,323.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,174.77 : 1,990,120.65 = 788,671.83 : x
  2. Step 2: Convert to fraction form
    1,442,174.77/1,990,120.65 = 788,671.83/x
  3. Step 3: Cross multiply
    1,442,174.77x = 1,990,120.65 × 788,671.83
  4. Step 4: Simplify right side
    1,442,174.77x = 1,569,552,094,956.29
  5. Step 5: Solve for x
    x = 1,569,552,094,956.29/1,442,174.77
  6. Step 6: Final answer
    x = 1,088,323.09

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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.