Home / 766,185.88-1,148,490.25-339,922.45

Finding the Fourth Proportional to 766,185.88, 1,148,490.25 and 339,922.45

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Solution

The fourth proportional to 766,185.88, 1,148,490.25 and 339,922.45 is: 509,533.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,185.88 : 1,148,490.25 = 339,922.45 : x
  2. Step 2: Convert to fraction form
    766,185.88/1,148,490.25 = 339,922.45/x
  3. Step 3: Cross multiply
    766,185.88x = 1,148,490.25 × 339,922.45
  4. Step 4: Simplify right side
    766,185.88x = 390,397,621,441.63
  5. Step 5: Solve for x
    x = 390,397,621,441.63/766,185.88
  6. Step 6: Final answer
    x = 509,533.82

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.