Home / 385,923.54-578,941.29-119,705.43

Finding the Fourth Proportional to 385,923.54, 578,941.29 and 119,705.43

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Solution

The fourth proportional to 385,923.54, 578,941.29 and 119,705.43 is: 179,575.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,923.54 : 578,941.29 = 119,705.43 : x
  2. Step 2: Convert to fraction form
    385,923.54/578,941.29 = 119,705.43/x
  3. Step 3: Cross multiply
    385,923.54x = 578,941.29 × 119,705.43
  4. Step 4: Simplify right side
    385,923.54x = 69,302,416,064.20
  5. Step 5: Solve for x
    x = 69,302,416,064.20/385,923.54
  6. Step 6: Final answer
    x = 179,575.51

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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.