Home / 1,405,384.77-1,939,431.63-760,804.98

Finding the Fourth Proportional to 1,405,384.77, 1,939,431.63 and 760,804.98

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Solution

The fourth proportional to 1,405,384.77, 1,939,431.63 and 760,804.98 is: 1,049,911.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,384.77 : 1,939,431.63 = 760,804.98 : x
  2. Step 2: Convert to fraction form
    1,405,384.77/1,939,431.63 = 760,804.98/x
  3. Step 3: Cross multiply
    1,405,384.77x = 1,939,431.63 × 760,804.98
  4. Step 4: Simplify right side
    1,405,384.77x = 1,475,529,242,473.52
  5. Step 5: Solve for x
    x = 1,475,529,242,473.52/1,405,384.77
  6. Step 6: Final answer
    x = 1,049,911.22

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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.