Home / 1,405,945.42-1,940,205.72-761,366.32

Finding the Fourth Proportional to 1,405,945.42, 1,940,205.72 and 761,366.32

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Solution

The fourth proportional to 1,405,945.42, 1,940,205.72 and 761,366.32 is: 1,050,686.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,945.42 : 1,940,205.72 = 761,366.32 : x
  2. Step 2: Convert to fraction form
    1,405,945.42/1,940,205.72 = 761,366.32/x
  3. Step 3: Cross multiply
    1,405,945.42x = 1,940,205.72 × 761,366.32
  4. Step 4: Simplify right side
    1,405,945.42x = 1,477,207,289,079.35
  5. Step 5: Solve for x
    x = 1,477,207,289,079.35/1,405,945.42
  6. Step 6: Final answer
    x = 1,050,686.09

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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.