Home / 1,405,363.53-1,939,407.86-760,783.72

Finding the Fourth Proportional to 1,405,363.53, 1,939,407.86 and 760,783.72

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Solution

The fourth proportional to 1,405,363.53, 1,939,407.86 and 760,783.72 is: 1,049,884.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,363.53 : 1,939,407.86 = 760,783.72 : x
  2. Step 2: Convert to fraction form
    1,405,363.53/1,939,407.86 = 760,783.72/x
  3. Step 3: Cross multiply
    1,405,363.53x = 1,939,407.86 × 760,783.72
  4. Step 4: Simplify right side
    1,405,363.53x = 1,475,469,927,017.87
  5. Step 5: Solve for x
    x = 1,475,469,927,017.87/1,405,363.53
  6. Step 6: Final answer
    x = 1,049,884.89

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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.