Home / 429,021.47-643,701.50-162,852.63

Finding the Fourth Proportional to 429,021.47, 643,701.50 and 162,852.63

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Solution

The fourth proportional to 429,021.47, 643,701.50 and 162,852.63 is: 244,343.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,021.47 : 643,701.50 = 162,852.63 : x
  2. Step 2: Convert to fraction form
    429,021.47/643,701.50 = 162,852.63/x
  3. Step 3: Cross multiply
    429,021.47x = 643,701.50 × 162,852.63
  4. Step 4: Simplify right side
    429,021.47x = 104,828,481,395.68
  5. Step 5: Solve for x
    x = 104,828,481,395.68/429,021.47
  6. Step 6: Final answer
    x = 244,343.21

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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.