Home / 761,372.85-1,142,203.32-305,999.46

Finding the Fourth Proportional to 761,372.85, 1,142,203.32 and 305,999.46

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Solution

The fourth proportional to 761,372.85, 1,142,203.32 and 305,999.46 is: 459,057.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,372.85 : 1,142,203.32 = 305,999.46 : x
  2. Step 2: Convert to fraction form
    761,372.85/1,142,203.32 = 305,999.46/x
  3. Step 3: Cross multiply
    761,372.85x = 1,142,203.32 × 305,999.46
  4. Step 4: Simplify right side
    761,372.85x = 349,513,599,130.21
  5. Step 5: Solve for x
    x = 349,513,599,130.21/761,372.85
  6. Step 6: Final answer
    x = 459,057.08

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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.