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Finding the Fourth Proportional to 328,574.94, 492,862.95 and 79,256.94

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Solution

The fourth proportional to 328,574.94, 492,862.95 and 79,256.94 is: 118,885.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,574.94 : 492,862.95 = 79,256.94 : x
  2. Step 2: Convert to fraction form
    328,574.94/492,862.95 = 79,256.94/x
  3. Step 3: Cross multiply
    328,574.94x = 492,862.95 × 79,256.94
  4. Step 4: Simplify right side
    328,574.94x = 39,062,809,256.37
  5. Step 5: Solve for x
    x = 39,062,809,256.37/328,574.94
  6. Step 6: Final answer
    x = 118,885.54

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1.5x scale

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.