Home / 688,296.72-1,032,465.45-328,505.48

Finding the Fourth Proportional to 688,296.72, 1,032,465.45 and 328,505.48

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Solution

The fourth proportional to 688,296.72, 1,032,465.45 and 328,505.48 is: 492,767.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,296.72 : 1,032,465.45 = 328,505.48 : x
  2. Step 2: Convert to fraction form
    688,296.72/1,032,465.45 = 328,505.48/x
  3. Step 3: Cross multiply
    688,296.72x = 1,032,465.45 × 328,505.48
  4. Step 4: Simplify right side
    688,296.72x = 339,170,561,212.83
  5. Step 5: Solve for x
    x = 339,170,561,212.83/688,296.72
  6. Step 6: Final answer
    x = 492,767.95

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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.