Home / 887,933.80-1,330,369.80-413,646.40

Finding the Fourth Proportional to 887,933.80, 1,330,369.80 and 413,646.40

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Solution

The fourth proportional to 887,933.80, 1,330,369.80 and 413,646.40 is: 619,756.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,933.80 : 1,330,369.80 = 413,646.40 : x
  2. Step 2: Convert to fraction form
    887,933.80/1,330,369.80 = 413,646.40/x
  3. Step 3: Cross multiply
    887,933.80x = 1,330,369.80 × 413,646.40
  4. Step 4: Simplify right side
    887,933.80x = 550,302,678,438.72
  5. Step 5: Solve for x
    x = 550,302,678,438.72/887,933.80
  6. Step 6: Final answer
    x = 619,756.43

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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.