Home / 688,310.46-1,032,486.05-328,519.23

Finding the Fourth Proportional to 688,310.46, 1,032,486.05 and 328,519.23

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Solution

The fourth proportional to 688,310.46, 1,032,486.05 and 328,519.23 is: 492,788.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,310.46 : 1,032,486.05 = 328,519.23 : x
  2. Step 2: Convert to fraction form
    688,310.46/1,032,486.05 = 328,519.23/x
  3. Step 3: Cross multiply
    688,310.46x = 1,032,486.05 × 328,519.23
  4. Step 4: Simplify right side
    688,310.46x = 339,191,522,953.04
  5. Step 5: Solve for x
    x = 339,191,522,953.04/688,310.46
  6. Step 6: Final answer
    x = 492,788.56

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Double scale
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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.