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Finding the Fourth Proportional to 379,069.65, 566,146.81 and 343,459.82

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Solution

The fourth proportional to 379,069.65, 566,146.81 and 343,459.82 is: 512,962.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,069.65 : 566,146.81 = 343,459.82 : x
  2. Step 2: Convert to fraction form
    379,069.65/566,146.81 = 343,459.82/x
  3. Step 3: Cross multiply
    379,069.65x = 566,146.81 × 343,459.82
  4. Step 4: Simplify right side
    379,069.65x = 194,448,681,456.17
  5. Step 5: Solve for x
    x = 194,448,681,456.17/379,069.65
  6. Step 6: Final answer
    x = 512,962.94

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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.