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Finding the Fourth Proportional to 662,668.12, 992,506.74 and 306,934.84

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Solution

The fourth proportional to 662,668.12, 992,506.74 and 306,934.84 is: 459,709.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,668.12 : 992,506.74 = 306,934.84 : x
  2. Step 2: Convert to fraction form
    662,668.12/992,506.74 = 306,934.84/x
  3. Step 3: Cross multiply
    662,668.12x = 992,506.74 × 306,934.84
  4. Step 4: Simplify right side
    662,668.12x = 304,634,897,440.82
  5. Step 5: Solve for x
    x = 304,634,897,440.82/662,668.12
  6. Step 6: Final answer
    x = 459,709.60

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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.