Home / 1,679,969.70-2,520,938.70-615,119.40

Finding the Fourth Proportional to 1,679,969.70, 2,520,938.70 and 615,119.40

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Solution

The fourth proportional to 1,679,969.70, 2,520,938.70 and 615,119.40 is: 923,039.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,969.70 : 2,520,938.70 = 615,119.40 : x
  2. Step 2: Convert to fraction form
    1,679,969.70/2,520,938.70 = 615,119.40/x
  3. Step 3: Cross multiply
    1,679,969.70x = 2,520,938.70 × 615,119.40
  4. Step 4: Simplify right side
    1,679,969.70x = 1,550,678,300,580.78
  5. Step 5: Solve for x
    x = 1,550,678,300,580.78/1,679,969.70
  6. Step 6: Final answer
    x = 923,039.45

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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.