Home / 644,284.44-889,088.16-357,822.98

Finding the Fourth Proportional to 644,284.44, 889,088.16 and 357,822.98

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Solution

The fourth proportional to 644,284.44, 889,088.16 and 357,822.98 is: 493,782.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,284.44 : 889,088.16 = 357,822.98 : x
  2. Step 2: Convert to fraction form
    644,284.44/889,088.16 = 357,822.98/x
  3. Step 3: Cross multiply
    644,284.44x = 889,088.16 × 357,822.98
  4. Step 4: Simplify right side
    644,284.44x = 318,136,174,893.92
  5. Step 5: Solve for x
    x = 318,136,174,893.92/644,284.44
  6. Step 6: Final answer
    x = 493,782.18

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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.