Home / 867,830.54-1,302,586.59-418,866.98

Finding the Fourth Proportional to 867,830.54, 1,302,586.59 and 418,866.98

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Solution

The fourth proportional to 867,830.54, 1,302,586.59 and 418,866.98 is: 628,706.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,830.54 : 1,302,586.59 = 418,866.98 : x
  2. Step 2: Convert to fraction form
    867,830.54/1,302,586.59 = 418,866.98/x
  3. Step 3: Cross multiply
    867,830.54x = 1,302,586.59 × 418,866.98
  4. Step 4: Simplify right side
    867,830.54x = 545,610,511,141.80
  5. Step 5: Solve for x
    x = 545,610,511,141.80/867,830.54
  6. Step 6: Final answer
    x = 628,706.28

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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.