Home / 1,405,925.89-1,940,178.78-761,346.79

Finding the Fourth Proportional to 1,405,925.89, 1,940,178.78 and 761,346.79

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Solution

The fourth proportional to 1,405,925.89, 1,940,178.78 and 761,346.79 is: 1,050,659.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,925.89 : 1,940,178.78 = 761,346.79 : x
  2. Step 2: Convert to fraction form
    1,405,925.89/1,940,178.78 = 761,346.79/x
  3. Step 3: Cross multiply
    1,405,925.89x = 1,940,178.78 × 761,346.79
  4. Step 4: Simplify right side
    1,405,925.89x = 1,477,148,886,179.12
  5. Step 5: Solve for x
    x = 1,477,148,886,179.12/1,405,925.89
  6. Step 6: Final answer
    x = 1,050,659.14

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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.