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Finding the Fourth Proportional to 636,218.00, 877,973.73 and 345,823.28

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Solution

The fourth proportional to 636,218.00, 877,973.73 and 345,823.28 is: 477,232.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,218.00 : 877,973.73 = 345,823.28 : x
  2. Step 2: Convert to fraction form
    636,218.00/877,973.73 = 345,823.28/x
  3. Step 3: Cross multiply
    636,218.00x = 877,973.73 × 345,823.28
  4. Step 4: Simplify right side
    636,218.00x = 303,623,750,672.57
  5. Step 5: Solve for x
    x = 303,623,750,672.57/636,218.00
  6. Step 6: Final answer
    x = 477,232.26

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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.