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Finding the Fourth Proportional to 410,018.40, 615,027.60 and 354,722.40

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Solution

The fourth proportional to 410,018.40, 615,027.60 and 354,722.40 is: 532,083.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,018.40 : 615,027.60 = 354,722.40 : x
  2. Step 2: Convert to fraction form
    410,018.40/615,027.60 = 354,722.40/x
  3. Step 3: Cross multiply
    410,018.40x = 615,027.60 × 354,722.40
  4. Step 4: Simplify right side
    410,018.40x = 218,164,066,338.24
  5. Step 5: Solve for x
    x = 218,164,066,338.24/410,018.40
  6. Step 6: Final answer
    x = 532,083.60

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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.