Home / 991,971.63-1,487,969.60-281,998.53

Finding the Fourth Proportional to 991,971.63, 1,487,969.60 and 281,998.53

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Solution

The fourth proportional to 991,971.63, 1,487,969.60 and 281,998.53 is: 423,001.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,971.63 : 1,487,969.60 = 281,998.53 : x
  2. Step 2: Convert to fraction form
    991,971.63/1,487,969.60 = 281,998.53/x
  3. Step 3: Cross multiply
    991,971.63x = 1,487,969.60 × 281,998.53
  4. Step 4: Simplify right side
    991,971.63x = 419,605,238,474.70
  5. Step 5: Solve for x
    x = 419,605,238,474.70/991,971.63
  6. Step 6: Final answer
    x = 423,001.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.