Home / 1,214,900.40-1,822,350.60-931,465.20

Finding the Fourth Proportional to 1,214,900.40, 1,822,350.60 and 931,465.20

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Solution

The fourth proportional to 1,214,900.40, 1,822,350.60 and 931,465.20 is: 1,397,197.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,900.40 : 1,822,350.60 = 931,465.20 : x
  2. Step 2: Convert to fraction form
    1,214,900.40/1,822,350.60 = 931,465.20/x
  3. Step 3: Cross multiply
    1,214,900.40x = 1,822,350.60 × 931,465.20
  4. Step 4: Simplify right side
    1,214,900.40x = 1,697,456,166,099.12
  5. Step 5: Solve for x
    x = 1,697,456,166,099.12/1,214,900.40
  6. Step 6: Final answer
    x = 1,397,197.80

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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.