Home / 872,130.47-1,308,393.14-303,538.42

Finding the Fourth Proportional to 872,130.47, 1,308,393.14 and 303,538.42

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Solution

The fourth proportional to 872,130.47, 1,308,393.14 and 303,538.42 is: 455,376.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,130.47 : 1,308,393.14 = 303,538.42 : x
  2. Step 2: Convert to fraction form
    872,130.47/1,308,393.14 = 303,538.42/x
  3. Step 3: Cross multiply
    872,130.47x = 1,308,393.14 × 303,538.42
  4. Step 4: Simplify right side
    872,130.47x = 397,147,581,773.63
  5. Step 5: Solve for x
    x = 397,147,581,773.63/872,130.47
  6. Step 6: Final answer
    x = 455,376.34

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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.