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Finding the Fourth Proportional to 478,726.84, 660,647.64 and 263,875.24

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Solution

The fourth proportional to 478,726.84, 660,647.64 and 263,875.24 is: 364,150.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,726.84 : 660,647.64 = 263,875.24 : x
  2. Step 2: Convert to fraction form
    478,726.84/660,647.64 = 263,875.24/x
  3. Step 3: Cross multiply
    478,726.84x = 660,647.64 × 263,875.24
  4. Step 4: Simplify right side
    478,726.84x = 174,328,554,560.43
  5. Step 5: Solve for x
    x = 174,328,554,560.43/478,726.84
  6. Step 6: Final answer
    x = 364,150.37

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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.