Home / 1,405,557.64-1,939,666.80-760,977.73

Finding the Fourth Proportional to 1,405,557.64, 1,939,666.80 and 760,977.73

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Solution

The fourth proportional to 1,405,557.64, 1,939,666.80 and 760,977.73 is: 1,050,147.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,557.64 : 1,939,666.80 = 760,977.73 : x
  2. Step 2: Convert to fraction form
    1,405,557.64/1,939,666.80 = 760,977.73/x
  3. Step 3: Cross multiply
    1,405,557.64x = 1,939,666.80 × 760,977.73
  4. Step 4: Simplify right side
    1,405,557.64x = 1,476,043,238,420.36
  5. Step 5: Solve for x
    x = 1,476,043,238,420.36/1,405,557.64
  6. Step 6: Final answer
    x = 1,050,147.78

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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.