Home / 1,557,428.80-2,332,456.80-1,056,078.40

Finding the Fourth Proportional to 1,557,428.80, 2,332,456.80 and 1,056,078.40

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Solution

The fourth proportional to 1,557,428.80, 2,332,456.80 and 1,056,078.40 is: 1,581,617.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,428.80 : 2,332,456.80 = 1,056,078.40 : x
  2. Step 2: Convert to fraction form
    1,557,428.80/2,332,456.80 = 1,056,078.40/x
  3. Step 3: Cross multiply
    1,557,428.80x = 2,332,456.80 × 1,056,078.40
  4. Step 4: Simplify right side
    1,557,428.80x = 2,463,257,245,413.12
  5. Step 5: Solve for x
    x = 2,463,257,245,413.12/1,557,428.80
  6. Step 6: Final answer
    x = 1,581,617.89

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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.