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Finding the Fourth Proportional to 672,763.84, 928,413.12 and 370,958.56

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Solution

The fourth proportional to 672,763.84, 928,413.12 and 370,958.56 is: 511,922.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,763.84 : 928,413.12 = 370,958.56 : x
  2. Step 2: Convert to fraction form
    672,763.84/928,413.12 = 370,958.56/x
  3. Step 3: Cross multiply
    672,763.84x = 928,413.12 × 370,958.56
  4. Step 4: Simplify right side
    672,763.84x = 344,402,794,080.31
  5. Step 5: Solve for x
    x = 344,402,794,080.31/672,763.84
  6. Step 6: Final answer
    x = 511,922.27

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1.5x scale

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.