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Finding the Fourth Proportional to 319,506.73, 479,605.57 and 284,194.19

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Solution

The fourth proportional to 319,506.73, 479,605.57 and 284,194.19 is: 426,598.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,506.73 : 479,605.57 = 284,194.19 : x
  2. Step 2: Convert to fraction form
    319,506.73/479,605.57 = 284,194.19/x
  3. Step 3: Cross multiply
    319,506.73x = 479,605.57 × 284,194.19
  4. Step 4: Simplify right side
    319,506.73x = 136,301,116,974.17
  5. Step 5: Solve for x
    x = 136,301,116,974.17/319,506.73
  6. Step 6: Final answer
    x = 426,598.58

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1.5x scale

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.