Home / 1,239,598.16-1,860,393.76-640,734.96

Finding the Fourth Proportional to 1,239,598.16, 1,860,393.76 and 640,734.96

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Solution

The fourth proportional to 1,239,598.16, 1,860,393.76 and 640,734.96 is: 961,617.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,598.16 : 1,860,393.76 = 640,734.96 : x
  2. Step 2: Convert to fraction form
    1,239,598.16/1,860,393.76 = 640,734.96/x
  3. Step 3: Cross multiply
    1,239,598.16x = 1,860,393.76 × 640,734.96
  4. Step 4: Simplify right side
    1,239,598.16x = 1,192,019,321,397.85
  5. Step 5: Solve for x
    x = 1,192,019,321,397.85/1,239,598.16
  6. Step 6: Final answer
    x = 961,617.53

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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.