Home / 673,243.94-929,112.36-386,782.58

Finding the Fourth Proportional to 673,243.94, 929,112.36 and 386,782.58

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Solution

The fourth proportional to 673,243.94, 929,112.36 and 386,782.58 is: 533,780.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,243.94 : 929,112.36 = 386,782.58 : x
  2. Step 2: Convert to fraction form
    673,243.94/929,112.36 = 386,782.58/x
  3. Step 3: Cross multiply
    673,243.94x = 929,112.36 × 386,782.58
  4. Step 4: Simplify right side
    673,243.94x = 359,364,475,710.69
  5. Step 5: Solve for x
    x = 359,364,475,710.69/673,243.94
  6. Step 6: Final answer
    x = 533,780.48

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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.