Home / 720,311.90-1,081,145.82-365,580.50

Finding the Fourth Proportional to 720,311.90, 1,081,145.82 and 365,580.50

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Solution

The fourth proportional to 720,311.90, 1,081,145.82 and 365,580.50 is: 548,714.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,311.90 : 1,081,145.82 = 365,580.50 : x
  2. Step 2: Convert to fraction form
    720,311.90/1,081,145.82 = 365,580.50/x
  3. Step 3: Cross multiply
    720,311.90x = 1,081,145.82 × 365,580.50
  4. Step 4: Simplify right side
    720,311.90x = 395,245,829,448.51
  5. Step 5: Solve for x
    x = 395,245,829,448.51/720,311.90
  6. Step 6: Final answer
    x = 548,714.84

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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.