Home / 1,389,485.40-2,084,228.10-940,421.40

Finding the Fourth Proportional to 1,389,485.40, 2,084,228.10 and 940,421.40

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Solution

The fourth proportional to 1,389,485.40, 2,084,228.10 and 940,421.40 is: 1,410,632.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,485.40 : 2,084,228.10 = 940,421.40 : x
  2. Step 2: Convert to fraction form
    1,389,485.40/2,084,228.10 = 940,421.40/x
  3. Step 3: Cross multiply
    1,389,485.40x = 2,084,228.10 × 940,421.40
  4. Step 4: Simplify right side
    1,389,485.40x = 1,960,052,707,721.34
  5. Step 5: Solve for x
    x = 1,960,052,707,721.34/1,389,485.40
  6. Step 6: Final answer
    x = 1,410,632.10

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Similar ratio
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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.