Home / 388,829.76-536,735.53-303,974.16

Finding the Fourth Proportional to 388,829.76, 536,735.53 and 303,974.16

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Solution

The fourth proportional to 388,829.76, 536,735.53 and 303,974.16 is: 419,601.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,829.76 : 536,735.53 = 303,974.16 : x
  2. Step 2: Convert to fraction form
    388,829.76/536,735.53 = 303,974.16/x
  3. Step 3: Cross multiply
    388,829.76x = 536,735.53 × 303,974.16
  4. Step 4: Simplify right side
    388,829.76x = 163,153,731,873.91
  5. Step 5: Solve for x
    x = 163,153,731,873.91/388,829.76
  6. Step 6: Final answer
    x = 419,601.97

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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.