Home / 830,400.72-1,145,976.84-467,828.52

Finding the Fourth Proportional to 830,400.72, 1,145,976.84 and 467,828.52

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Solution

The fourth proportional to 830,400.72, 1,145,976.84 and 467,828.52 is: 645,616.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,400.72 : 1,145,976.84 = 467,828.52 : x
  2. Step 2: Convert to fraction form
    830,400.72/1,145,976.84 = 467,828.52/x
  3. Step 3: Cross multiply
    830,400.72x = 1,145,976.84 × 467,828.52
  4. Step 4: Simplify right side
    830,400.72x = 536,120,649,011.48
  5. Step 5: Solve for x
    x = 536,120,649,011.48/830,400.72
  6. Step 6: Final answer
    x = 645,616.79

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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.