Home / 1,389,630.20-2,084,639.70-590,905.40

Finding the Fourth Proportional to 1,389,630.20, 2,084,639.70 and 590,905.40

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Solution

The fourth proportional to 1,389,630.20, 2,084,639.70 and 590,905.40 is: 886,440.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,630.20 : 2,084,639.70 = 590,905.40 : x
  2. Step 2: Convert to fraction form
    1,389,630.20/2,084,639.70 = 590,905.40/x
  3. Step 3: Cross multiply
    1,389,630.20x = 2,084,639.70 × 590,905.40
  4. Step 4: Simplify right side
    1,389,630.20x = 1,231,824,855,784.38
  5. Step 5: Solve for x
    x = 1,231,824,855,784.38/1,389,630.20
  6. Step 6: Final answer
    x = 886,440.76

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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.