Home / 918,647.04-1,377,881.46-278,956.33

Finding the Fourth Proportional to 918,647.04, 1,377,881.46 and 278,956.33

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Solution

The fourth proportional to 918,647.04, 1,377,881.46 and 278,956.33 is: 418,407.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,647.04 : 1,377,881.46 = 278,956.33 : x
  2. Step 2: Convert to fraction form
    918,647.04/1,377,881.46 = 278,956.33/x
  3. Step 3: Cross multiply
    918,647.04x = 1,377,881.46 × 278,956.33
  4. Step 4: Simplify right side
    918,647.04x = 384,368,751,811.94
  5. Step 5: Solve for x
    x = 384,368,751,811.94/918,647.04
  6. Step 6: Final answer
    x = 418,407.44

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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.