Home / 488,428.41-674,360.34-304,946.61

Finding the Fourth Proportional to 488,428.41, 674,360.34 and 304,946.61

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Solution

The fourth proportional to 488,428.41, 674,360.34 and 304,946.61 is: 421,031.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,428.41 : 674,360.34 = 304,946.61 : x
  2. Step 2: Convert to fraction form
    488,428.41/674,360.34 = 304,946.61/x
  3. Step 3: Cross multiply
    488,428.41x = 674,360.34 × 304,946.61
  4. Step 4: Simplify right side
    488,428.41x = 205,643,899,601.45
  5. Step 5: Solve for x
    x = 205,643,899,601.45/488,428.41
  6. Step 6: Final answer
    x = 421,031.81

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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.