Home / 1,214,544.80-1,821,817.20-373,138.40

Finding the Fourth Proportional to 1,214,544.80, 1,821,817.20 and 373,138.40

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Solution

The fourth proportional to 1,214,544.80, 1,821,817.20 and 373,138.40 is: 559,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,544.80 : 1,821,817.20 = 373,138.40 : x
  2. Step 2: Convert to fraction form
    1,214,544.80/1,821,817.20 = 373,138.40/x
  3. Step 3: Cross multiply
    1,214,544.80x = 1,821,817.20 × 373,138.40
  4. Step 4: Simplify right side
    1,214,544.80x = 679,789,955,100.48
  5. Step 5: Solve for x
    x = 679,789,955,100.48/1,214,544.80
  6. Step 6: Final answer
    x = 559,707.60

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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.