Home / 1,038,437.80-1,555,032.30-828,485.80

Finding the Fourth Proportional to 1,038,437.80, 1,555,032.30 and 828,485.80

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Solution

The fourth proportional to 1,038,437.80, 1,555,032.30 and 828,485.80 is: 1,240,634.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,437.80 : 1,555,032.30 = 828,485.80 : x
  2. Step 2: Convert to fraction form
    1,038,437.80/1,555,032.30 = 828,485.80/x
  3. Step 3: Cross multiply
    1,038,437.80x = 1,555,032.30 × 828,485.80
  4. Step 4: Simplify right side
    1,038,437.80x = 1,288,322,179,091.34
  5. Step 5: Solve for x
    x = 1,288,322,179,091.34/1,038,437.80
  6. Step 6: Final answer
    x = 1,240,634.90

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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.