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Finding the Fourth Proportional to 659,172.06, 909,681.94 and 372,675.06

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Solution

The fourth proportional to 659,172.06, 909,681.94 and 372,675.06 is: 514,305.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,172.06 : 909,681.94 = 372,675.06 : x
  2. Step 2: Convert to fraction form
    659,172.06/909,681.94 = 372,675.06/x
  3. Step 3: Cross multiply
    659,172.06x = 909,681.94 × 372,675.06
  4. Step 4: Simplify right side
    659,172.06x = 339,015,771,570.42
  5. Step 5: Solve for x
    x = 339,015,771,570.42/659,172.06
  6. Step 6: Final answer
    x = 514,305.43

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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.