Home / 921,348.95-1,382,220.23-322,329.65

Finding the Fourth Proportional to 921,348.95, 1,382,220.23 and 322,329.65

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Solution

The fourth proportional to 921,348.95, 1,382,220.23 and 322,329.65 is: 483,563.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,348.95 : 1,382,220.23 = 322,329.65 : x
  2. Step 2: Convert to fraction form
    921,348.95/1,382,220.23 = 322,329.65/x
  3. Step 3: Cross multiply
    921,348.95x = 1,382,220.23 × 322,329.65
  4. Step 4: Simplify right side
    921,348.95x = 445,530,554,436.07
  5. Step 5: Solve for x
    x = 445,530,554,436.07/921,348.95
  6. Step 6: Final answer
    x = 483,563.32

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Double scale
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Similar ratio
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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.