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Finding the Fourth Proportional to 875,400.21, 1,208,052.27 and 472,992.21

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Solution

The fourth proportional to 875,400.21, 1,208,052.27 and 472,992.21 is: 652,729.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,400.21 : 1,208,052.27 = 472,992.21 : x
  2. Step 2: Convert to fraction form
    875,400.21/1,208,052.27 = 472,992.21/x
  3. Step 3: Cross multiply
    875,400.21x = 1,208,052.27 × 472,992.21
  4. Step 4: Simplify right side
    875,400.21x = 571,399,312,982.82
  5. Step 5: Solve for x
    x = 571,399,312,982.82/875,400.21
  6. Step 6: Final answer
    x = 652,729.24

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.