Home / 1,030,178.20-1,545,413.10-320,132.20

Finding the Fourth Proportional to 1,030,178.20, 1,545,413.10 and 320,132.20

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Solution

The fourth proportional to 1,030,178.20, 1,545,413.10 and 320,132.20 is: 480,243.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030,178.20 : 1,545,413.10 = 320,132.20 : x
  2. Step 2: Convert to fraction form
    1,030,178.20/1,545,413.10 = 320,132.20/x
  3. Step 3: Cross multiply
    1,030,178.20x = 1,545,413.10 × 320,132.20
  4. Step 4: Simplify right side
    1,030,178.20x = 494,736,495,611.82
  5. Step 5: Solve for x
    x = 494,736,495,611.82/1,030,178.20
  6. Step 6: Final answer
    x = 480,243.61

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Double scale
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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.