Home / 1,077,777.60-1,616,666.40-720,859.20

Finding the Fourth Proportional to 1,077,777.60, 1,616,666.40 and 720,859.20

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Solution

The fourth proportional to 1,077,777.60, 1,616,666.40 and 720,859.20 is: 1,081,288.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,777.60 : 1,616,666.40 = 720,859.20 : x
  2. Step 2: Convert to fraction form
    1,077,777.60/1,616,666.40 = 720,859.20/x
  3. Step 3: Cross multiply
    1,077,777.60x = 1,616,666.40 × 720,859.20
  4. Step 4: Simplify right side
    1,077,777.60x = 1,165,388,847,770.88
  5. Step 5: Solve for x
    x = 1,165,388,847,770.88/1,077,777.60
  6. Step 6: Final answer
    x = 1,081,288.80

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1.5x scale

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.