Home / 1,625,442.39-2,243,085.80-890,390.79

Finding the Fourth Proportional to 1,625,442.39, 2,243,085.80 and 890,390.79

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Solution

The fourth proportional to 1,625,442.39, 2,243,085.80 and 890,390.79 is: 1,228,725.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625,442.39 : 2,243,085.80 = 890,390.79 : x
  2. Step 2: Convert to fraction form
    1,625,442.39/2,243,085.80 = 890,390.79/x
  3. Step 3: Cross multiply
    1,625,442.39x = 2,243,085.80 × 890,390.79
  4. Step 4: Simplify right side
    1,625,442.39x = 1,997,222,933,047.83
  5. Step 5: Solve for x
    x = 1,997,222,933,047.83/1,625,442.39
  6. Step 6: Final answer
    x = 1,228,725.76

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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.