Home / 642,933.84-887,941.80-501,384.72

Finding the Fourth Proportional to 642,933.84, 887,941.80 and 501,384.72

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Solution

The fourth proportional to 642,933.84, 887,941.80 and 501,384.72 is: 692,451.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,933.84 : 887,941.80 = 501,384.72 : x
  2. Step 2: Convert to fraction form
    642,933.84/887,941.80 = 501,384.72/x
  3. Step 3: Cross multiply
    642,933.84x = 887,941.80 × 501,384.72
  4. Step 4: Simplify right side
    642,933.84x = 445,200,450,769.30
  5. Step 5: Solve for x
    x = 445,200,450,769.30/642,933.84
  6. Step 6: Final answer
    x = 692,451.42

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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.