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Finding the Fourth Proportional to 294,391.40, 439,323.10 and 292,707.42

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Solution

The fourth proportional to 294,391.40, 439,323.10 and 292,707.42 is: 436,810.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,391.40 : 439,323.10 = 292,707.42 : x
  2. Step 2: Convert to fraction form
    294,391.40/439,323.10 = 292,707.42/x
  3. Step 3: Cross multiply
    294,391.40x = 439,323.10 × 292,707.42
  4. Step 4: Simplify right side
    294,391.40x = 128,593,131,147.40
  5. Step 5: Solve for x
    x = 128,593,131,147.40/294,391.40
  6. Step 6: Final answer
    x = 436,810.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.