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Finding the Fourth Proportional to 379,068.65, 566,145.32 and 343,458.82

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Solution

The fourth proportional to 379,068.65, 566,145.32 and 343,458.82 is: 512,961.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,068.65 : 566,145.32 = 343,458.82 : x
  2. Step 2: Convert to fraction form
    379,068.65/566,145.32 = 343,458.82/x
  3. Step 3: Cross multiply
    379,068.65x = 566,145.32 × 343,458.82
  4. Step 4: Simplify right side
    379,068.65x = 194,447,603,512.09
  5. Step 5: Solve for x
    x = 194,447,603,512.09/379,068.65
  6. Step 6: Final answer
    x = 512,961.45

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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.