Home / 1,214,914.40-1,822,371.60-931,479.20

Finding the Fourth Proportional to 1,214,914.40, 1,822,371.60 and 931,479.20

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Solution

The fourth proportional to 1,214,914.40, 1,822,371.60 and 931,479.20 is: 1,397,218.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,914.40 : 1,822,371.60 = 931,479.20 : x
  2. Step 2: Convert to fraction form
    1,214,914.40/1,822,371.60 = 931,479.20/x
  3. Step 3: Cross multiply
    1,214,914.40x = 1,822,371.60 × 931,479.20
  4. Step 4: Simplify right side
    1,214,914.40x = 1,697,501,240,070.72
  5. Step 5: Solve for x
    x = 1,697,501,240,070.72/1,214,914.40
  6. Step 6: Final answer
    x = 1,397,218.80

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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.