Home / 1,212,410.40-1,818,442.80-413,728.80

Finding the Fourth Proportional to 1,212,410.40, 1,818,442.80 and 413,728.80

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Solution

The fourth proportional to 1,212,410.40, 1,818,442.80 and 413,728.80 is: 620,534.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,410.40 : 1,818,442.80 = 413,728.80 : x
  2. Step 2: Convert to fraction form
    1,212,410.40/1,818,442.80 = 413,728.80/x
  3. Step 3: Cross multiply
    1,212,410.40x = 1,818,442.80 × 413,728.80
  4. Step 4: Simplify right side
    1,212,410.40x = 752,342,157,512.64
  5. Step 5: Solve for x
    x = 752,342,157,512.64/1,212,410.40
  6. Step 6: Final answer
    x = 620,534.23

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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.