Home / 1,261,490.08-1,741,242.48-778,205.92

Finding the Fourth Proportional to 1,261,490.08, 1,741,242.48 and 778,205.92

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Solution

The fourth proportional to 1,261,490.08, 1,741,242.48 and 778,205.92 is: 1,074,162.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,490.08 : 1,741,242.48 = 778,205.92 : x
  2. Step 2: Convert to fraction form
    1,261,490.08/1,741,242.48 = 778,205.92/x
  3. Step 3: Cross multiply
    1,261,490.08x = 1,741,242.48 × 778,205.92
  4. Step 4: Simplify right side
    1,261,490.08x = 1,355,045,206,091.48
  5. Step 5: Solve for x
    x = 1,355,045,206,091.48/1,261,490.08
  6. Step 6: Final answer
    x = 1,074,162.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.