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Finding the Fourth Proportional to 704,830.19, 972,666.62 and 382,540.31

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Solution

The fourth proportional to 704,830.19, 972,666.62 and 382,540.31 is: 527,906.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,830.19 : 972,666.62 = 382,540.31 : x
  2. Step 2: Convert to fraction form
    704,830.19/972,666.62 = 382,540.31/x
  3. Step 3: Cross multiply
    704,830.19x = 972,666.62 × 382,540.31
  4. Step 4: Simplify right side
    704,830.19x = 372,084,183,565.42
  5. Step 5: Solve for x
    x = 372,084,183,565.42/704,830.19
  6. Step 6: Final answer
    x = 527,906.14

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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.