Home / 644,285.44-889,089.54-357,823.98

Finding the Fourth Proportional to 644,285.44, 889,089.54 and 357,823.98

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Solution

The fourth proportional to 644,285.44, 889,089.54 and 357,823.98 is: 493,783.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,285.44 : 889,089.54 = 357,823.98 : x
  2. Step 2: Convert to fraction form
    644,285.44/889,089.54 = 357,823.98/x
  3. Step 3: Cross multiply
    644,285.44x = 889,089.54 × 357,823.98
  4. Step 4: Simplify right side
    644,285.44x = 318,137,557,779.17
  5. Step 5: Solve for x
    x = 318,137,557,779.17/644,285.44
  6. Step 6: Final answer
    x = 493,783.56

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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.