Home / 1,040,413.60-1,560,663.60-330,421.60

Finding the Fourth Proportional to 1,040,413.60, 1,560,663.60 and 330,421.60

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Solution

The fourth proportional to 1,040,413.60, 1,560,663.60 and 330,421.60 is: 495,646.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,413.60 : 1,560,663.60 = 330,421.60 : x
  2. Step 2: Convert to fraction form
    1,040,413.60/1,560,663.60 = 330,421.60/x
  3. Step 3: Cross multiply
    1,040,413.60x = 1,560,663.60 × 330,421.60
  4. Step 4: Simplify right side
    1,040,413.60x = 515,676,963,773.76
  5. Step 5: Solve for x
    x = 515,676,963,773.76/1,040,413.60
  6. Step 6: Final answer
    x = 495,646.12

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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.