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Finding the Fourth Proportional to 632,448.95, 872,779.25 and 345,968.96

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Solution

The fourth proportional to 632,448.95, 872,779.25 and 345,968.96 is: 477,437.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,448.95 : 872,779.25 = 345,968.96 : x
  2. Step 2: Convert to fraction form
    632,448.95/872,779.25 = 345,968.96/x
  3. Step 3: Cross multiply
    632,448.95x = 872,779.25 × 345,968.96
  4. Step 4: Simplify right side
    632,448.95x = 301,954,525,933.11
  5. Step 5: Solve for x
    x = 301,954,525,933.11/632,448.95
  6. Step 6: Final answer
    x = 477,437.00

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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.