Home / 385,443.09-578,161.40-301,274.06

Finding the Fourth Proportional to 385,443.09, 578,161.40 and 301,274.06

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Solution

The fourth proportional to 385,443.09, 578,161.40 and 301,274.06 is: 451,908.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,443.09 : 578,161.40 = 301,274.06 : x
  2. Step 2: Convert to fraction form
    385,443.09/578,161.40 = 301,274.06/x
  3. Step 3: Cross multiply
    385,443.09x = 578,161.40 × 301,274.06
  4. Step 4: Simplify right side
    385,443.09x = 174,185,027,916.11
  5. Step 5: Solve for x
    x = 174,185,027,916.11/385,443.09
  6. Step 6: Final answer
    x = 451,908.55

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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.