Home / 788,728.61-1,183,292.49-220,109.64

Finding the Fourth Proportional to 788,728.61, 1,183,292.49 and 220,109.64

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Solution

The fourth proportional to 788,728.61, 1,183,292.49 and 220,109.64 is: 330,220.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,728.61 : 1,183,292.49 = 220,109.64 : x
  2. Step 2: Convert to fraction form
    788,728.61/1,183,292.49 = 220,109.64/x
  3. Step 3: Cross multiply
    788,728.61x = 1,183,292.49 × 220,109.64
  4. Step 4: Simplify right side
    788,728.61x = 260,454,083,988.60
  5. Step 5: Solve for x
    x = 260,454,083,988.60/788,728.61
  6. Step 6: Final answer
    x = 330,220.16

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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.