Home / 1,210,647.20-1,815,279.60-499,834.40

Finding the Fourth Proportional to 1,210,647.20, 1,815,279.60 and 499,834.40

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Solution

The fourth proportional to 1,210,647.20, 1,815,279.60 and 499,834.40 is: 749,466.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,647.20 : 1,815,279.60 = 499,834.40 : x
  2. Step 2: Convert to fraction form
    1,210,647.20/1,815,279.60 = 499,834.40/x
  3. Step 3: Cross multiply
    1,210,647.20x = 1,815,279.60 × 499,834.40
  4. Step 4: Simplify right side
    1,210,647.20x = 907,339,189,698.24
  5. Step 5: Solve for x
    x = 907,339,189,698.24/1,210,647.20
  6. Step 6: Final answer
    x = 749,466.23

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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.