Home / 760,679.12-1,141,709.88-405,995.60

Finding the Fourth Proportional to 760,679.12, 1,141,709.88 and 405,995.60

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Solution

The fourth proportional to 760,679.12, 1,141,709.88 and 405,995.60 is: 609,362.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,679.12 : 1,141,709.88 = 405,995.60 : x
  2. Step 2: Convert to fraction form
    760,679.12/1,141,709.88 = 405,995.60/x
  3. Step 3: Cross multiply
    760,679.12x = 1,141,709.88 × 405,995.60
  4. Step 4: Simplify right side
    760,679.12x = 463,529,187,756.53
  5. Step 5: Solve for x
    x = 463,529,187,756.53/760,679.12
  6. Step 6: Final answer
    x = 609,362.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.