Home / 456,747.30-684,136.80-378,015.30

Finding the Fourth Proportional to 456,747.30, 684,136.80 and 378,015.30

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Solution

The fourth proportional to 456,747.30, 684,136.80 and 378,015.30 is: 566,208.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,747.30 : 684,136.80 = 378,015.30 : x
  2. Step 2: Convert to fraction form
    456,747.30/684,136.80 = 378,015.30/x
  3. Step 3: Cross multiply
    456,747.30x = 684,136.80 × 378,015.30
  4. Step 4: Simplify right side
    456,747.30x = 258,614,177,693.04
  5. Step 5: Solve for x
    x = 258,614,177,693.04/456,747.30
  6. Step 6: Final answer
    x = 566,208.44

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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.