Home / 1,122,763.80-1,684,145.70-324,071.40

Finding the Fourth Proportional to 1,122,763.80, 1,684,145.70 and 324,071.40

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Solution

The fourth proportional to 1,122,763.80, 1,684,145.70 and 324,071.40 is: 486,107.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,763.80 : 1,684,145.70 = 324,071.40 : x
  2. Step 2: Convert to fraction form
    1,122,763.80/1,684,145.70 = 324,071.40/x
  3. Step 3: Cross multiply
    1,122,763.80x = 1,684,145.70 × 324,071.40
  4. Step 4: Simplify right side
    1,122,763.80x = 545,783,454,802.98
  5. Step 5: Solve for x
    x = 545,783,454,802.98/1,122,763.80
  6. Step 6: Final answer
    x = 486,107.10

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Double scale
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Similar ratio
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1.5x scale

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.