Home / 490,338.09-676,721.48-296,852.45

Finding the Fourth Proportional to 490,338.09, 676,721.48 and 296,852.45

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Solution

The fourth proportional to 490,338.09, 676,721.48 and 296,852.45 is: 409,689.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,338.09 : 676,721.48 = 296,852.45 : x
  2. Step 2: Convert to fraction form
    490,338.09/676,721.48 = 296,852.45/x
  3. Step 3: Cross multiply
    490,338.09x = 676,721.48 × 296,852.45
  4. Step 4: Simplify right side
    490,338.09x = 200,886,424,437.76
  5. Step 5: Solve for x
    x = 200,886,424,437.76/490,338.09
  6. Step 6: Final answer
    x = 409,689.62

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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.