Home / 677,297.80-1,015,875.42-277,980.76

Finding the Fourth Proportional to 677,297.80, 1,015,875.42 and 277,980.76

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Solution

The fourth proportional to 677,297.80, 1,015,875.42 and 277,980.76 is: 416,941.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,297.80 : 1,015,875.42 = 277,980.76 : x
  2. Step 2: Convert to fraction form
    677,297.80/1,015,875.42 = 277,980.76/x
  3. Step 3: Cross multiply
    677,297.80x = 1,015,875.42 × 277,980.76
  4. Step 4: Simplify right side
    677,297.80x = 282,393,821,316.92
  5. Step 5: Solve for x
    x = 282,393,821,316.92/677,297.80
  6. Step 6: Final answer
    x = 416,941.88

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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.