Home / 1,430,200.80-2,145,301.20-756,021.60

Finding the Fourth Proportional to 1,430,200.80, 2,145,301.20 and 756,021.60

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Solution

The fourth proportional to 1,430,200.80, 2,145,301.20 and 756,021.60 is: 1,134,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,200.80 : 2,145,301.20 = 756,021.60 : x
  2. Step 2: Convert to fraction form
    1,430,200.80/2,145,301.20 = 756,021.60/x
  3. Step 3: Cross multiply
    1,430,200.80x = 2,145,301.20 × 756,021.60
  4. Step 4: Simplify right side
    1,430,200.80x = 1,621,894,045,705.92
  5. Step 5: Solve for x
    x = 1,621,894,045,705.92/1,430,200.80
  6. Step 6: Final answer
    x = 1,134,032.40

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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.