Home / 915,797.35-1,372,179.70-316,425.40

Finding the Fourth Proportional to 915,797.35, 1,372,179.70 and 316,425.40

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Solution

The fourth proportional to 915,797.35, 1,372,179.70 and 316,425.40 is: 474,114.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,797.35 : 1,372,179.70 = 316,425.40 : x
  2. Step 2: Convert to fraction form
    915,797.35/1,372,179.70 = 316,425.40/x
  3. Step 3: Cross multiply
    915,797.35x = 1,372,179.70 × 316,425.40
  4. Step 4: Simplify right side
    915,797.35x = 434,192,507,409.46
  5. Step 5: Solve for x
    x = 434,192,507,409.46/915,797.35
  6. Step 6: Final answer
    x = 474,114.18

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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.