Home / 851,136.54-1,276,903.53-290,171.58

Finding the Fourth Proportional to 851,136.54, 1,276,903.53 and 290,171.58

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Solution

The fourth proportional to 851,136.54, 1,276,903.53 and 290,171.58 is: 435,325.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,136.54 : 1,276,903.53 = 290,171.58 : x
  2. Step 2: Convert to fraction form
    851,136.54/1,276,903.53 = 290,171.58/x
  3. Step 3: Cross multiply
    851,136.54x = 1,276,903.53 × 290,171.58
  4. Step 4: Simplify right side
    851,136.54x = 370,521,114,807.68
  5. Step 5: Solve for x
    x = 370,521,114,807.68/851,136.54
  6. Step 6: Final answer
    x = 435,325.12

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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.