Home / 908,445.09-1,362,705.30-339,769.20

Finding the Fourth Proportional to 908,445.09, 1,362,705.30 and 339,769.20

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Solution

The fourth proportional to 908,445.09, 1,362,705.30 and 339,769.20 is: 509,667.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,445.09 : 1,362,705.30 = 339,769.20 : x
  2. Step 2: Convert to fraction form
    908,445.09/1,362,705.30 = 339,769.20/x
  3. Step 3: Cross multiply
    908,445.09x = 1,362,705.30 × 339,769.20
  4. Step 4: Simplify right side
    908,445.09x = 463,005,289,616.76
  5. Step 5: Solve for x
    x = 463,005,289,616.76/908,445.09
  6. Step 6: Final answer
    x = 509,667.89

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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.