Home / 1,078,413.40-1,617,696.90-330,458.20

Finding the Fourth Proportional to 1,078,413.40, 1,617,696.90 and 330,458.20

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Solution

The fourth proportional to 1,078,413.40, 1,617,696.90 and 330,458.20 is: 495,710.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,413.40 : 1,617,696.90 = 330,458.20 : x
  2. Step 2: Convert to fraction form
    1,078,413.40/1,617,696.90 = 330,458.20/x
  3. Step 3: Cross multiply
    1,078,413.40x = 1,617,696.90 × 330,458.20
  4. Step 4: Simplify right side
    1,078,413.40x = 534,581,205,719.58
  5. Step 5: Solve for x
    x = 534,581,205,719.58/1,078,413.40
  6. Step 6: Final answer
    x = 495,710.83

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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.