Home / 931,870.20-1,397,999.70-532,183.80

Finding the Fourth Proportional to 931,870.20, 1,397,999.70 and 532,183.80

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Solution

The fourth proportional to 931,870.20, 1,397,999.70 and 532,183.80 is: 798,386.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,870.20 : 1,397,999.70 = 532,183.80 : x
  2. Step 2: Convert to fraction form
    931,870.20/1,397,999.70 = 532,183.80/x
  3. Step 3: Cross multiply
    931,870.20x = 1,397,999.70 × 532,183.80
  4. Step 4: Simplify right side
    931,870.20x = 743,992,792,744.86
  5. Step 5: Solve for x
    x = 743,992,792,744.86/931,870.20
  6. Step 6: Final answer
    x = 798,386.72

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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.