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Finding the Fourth Proportional to 556,794.41, 768,378.42 and 302,145.66

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Solution

The fourth proportional to 556,794.41, 768,378.42 and 302,145.66 is: 416,962.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,794.41 : 768,378.42 = 302,145.66 : x
  2. Step 2: Convert to fraction form
    556,794.41/768,378.42 = 302,145.66/x
  3. Step 3: Cross multiply
    556,794.41x = 768,378.42 × 302,145.66
  4. Step 4: Simplify right side
    556,794.41x = 232,162,204,840.66
  5. Step 5: Solve for x
    x = 232,162,204,840.66/556,794.41
  6. Step 6: Final answer
    x = 416,962.17

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1.5x scale

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.