Home / 908,187.60-1,362,425.40-309,205.20

Finding the Fourth Proportional to 908,187.60, 1,362,425.40 and 309,205.20

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Solution

The fourth proportional to 908,187.60, 1,362,425.40 and 309,205.20 is: 463,856.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,187.60 : 1,362,425.40 = 309,205.20 : x
  2. Step 2: Convert to fraction form
    908,187.60/1,362,425.40 = 309,205.20/x
  3. Step 3: Cross multiply
    908,187.60x = 1,362,425.40 × 309,205.20
  4. Step 4: Simplify right side
    908,187.60x = 421,269,018,292.08
  5. Step 5: Solve for x
    x = 421,269,018,292.08/908,187.60
  6. Step 6: Final answer
    x = 463,856.83

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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.