Home / 908,436.09-1,362,691.80-339,760.20

Finding the Fourth Proportional to 908,436.09, 1,362,691.80 and 339,760.20

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Solution

The fourth proportional to 908,436.09, 1,362,691.80 and 339,760.20 is: 509,654.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,436.09 : 1,362,691.80 = 339,760.20 : x
  2. Step 2: Convert to fraction form
    908,436.09/1,362,691.80 = 339,760.20/x
  3. Step 3: Cross multiply
    908,436.09x = 1,362,691.80 × 339,760.20
  4. Step 4: Simplify right side
    908,436.09x = 462,988,438,506.36
  5. Step 5: Solve for x
    x = 462,988,438,506.36/908,436.09
  6. Step 6: Final answer
    x = 509,654.39

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Double scale
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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.