Home / 1,549,235.52-2,138,145.12-870,172

Finding the Fourth Proportional to 1,549,235.52, 2,138,145.12 and 870,172

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Solution

The fourth proportional to 1,549,235.52, 2,138,145.12 and 870,172 is: 1,200,949.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549,235.52 : 2,138,145.12 = 870,172 : x
  2. Step 2: Convert to fraction form
    1,549,235.52/2,138,145.12 = 870,172/x
  3. Step 3: Cross multiply
    1,549,235.52x = 2,138,145.12 × 870,172
  4. Step 4: Simplify right side
    1,549,235.52x = 1,860,554,015,360.64
  5. Step 5: Solve for x
    x = 1,860,554,015,360.64/1,549,235.52
  6. Step 6: Final answer
    x = 1,200,949.75

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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.