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Finding the Fourth Proportional to 424,615.68, 586,195.20 and 328,907.52

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Solution

The fourth proportional to 424,615.68, 586,195.20 and 328,907.52 is: 454,067.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,615.68 : 586,195.20 = 328,907.52 : x
  2. Step 2: Convert to fraction form
    424,615.68/586,195.20 = 328,907.52/x
  3. Step 3: Cross multiply
    424,615.68x = 586,195.20 × 328,907.52
  4. Step 4: Simplify right side
    424,615.68x = 192,804,009,467.90
  5. Step 5: Solve for x
    x = 192,804,009,467.90/424,615.68
  6. Step 6: Final answer
    x = 454,067.10

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1.5x scale

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.