Home / 678,503.75-1,018,222.19-235,271.75

Finding the Fourth Proportional to 678,503.75, 1,018,222.19 and 235,271.75

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Solution

The fourth proportional to 678,503.75, 1,018,222.19 and 235,271.75 is: 353,069.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,503.75 : 1,018,222.19 = 235,271.75 : x
  2. Step 2: Convert to fraction form
    678,503.75/1,018,222.19 = 235,271.75/x
  3. Step 3: Cross multiply
    678,503.75x = 1,018,222.19 × 235,271.75
  4. Step 4: Simplify right side
    678,503.75x = 239,558,916,530.13
  5. Step 5: Solve for x
    x = 239,558,916,530.13/678,503.75
  6. Step 6: Final answer
    x = 353,069.41

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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.