Home / 673,112.68-929,045.28-428,047.77

Finding the Fourth Proportional to 673,112.68, 929,045.28 and 428,047.77

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Solution

The fourth proportional to 673,112.68, 929,045.28 and 428,047.77 is: 590,801.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,112.68 : 929,045.28 = 428,047.77 : x
  2. Step 2: Convert to fraction form
    673,112.68/929,045.28 = 428,047.77/x
  3. Step 3: Cross multiply
    673,112.68x = 929,045.28 × 428,047.77
  4. Step 4: Simplify right side
    673,112.68x = 397,675,760,333.03
  5. Step 5: Solve for x
    x = 397,675,760,333.03/673,112.68
  6. Step 6: Final answer
    x = 590,801.17

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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.