Home / 668,858.29-1,003,615.49-313,901.17

Finding the Fourth Proportional to 668,858.29, 1,003,615.49 and 313,901.17

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Solution

The fourth proportional to 668,858.29, 1,003,615.49 and 313,901.17 is: 471,005.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,858.29 : 1,003,615.49 = 313,901.17 : x
  2. Step 2: Convert to fraction form
    668,858.29/1,003,615.49 = 313,901.17/x
  3. Step 3: Cross multiply
    668,858.29x = 1,003,615.49 × 313,901.17
  4. Step 4: Simplify right side
    668,858.29x = 315,036,076,541.12
  5. Step 5: Solve for x
    x = 315,036,076,541.12/668,858.29
  6. Step 6: Final answer
    x = 471,005.71

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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.