Home / 330,830.89-494,005.45-262,597.38

Finding the Fourth Proportional to 330,830.89, 494,005.45 and 262,597.38

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Solution

The fourth proportional to 330,830.89, 494,005.45 and 262,597.38 is: 392,117.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,830.89 : 494,005.45 = 262,597.38 : x
  2. Step 2: Convert to fraction form
    330,830.89/494,005.45 = 262,597.38/x
  3. Step 3: Cross multiply
    330,830.89x = 494,005.45 × 262,597.38
  4. Step 4: Simplify right side
    330,830.89x = 129,724,539,500.26
  5. Step 5: Solve for x
    x = 129,724,539,500.26/330,830.89
  6. Step 6: Final answer
    x = 392,117.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.