Home / 818,708.37-1,129,051.23-647,036.46

Finding the Fourth Proportional to 818,708.37, 1,129,051.23 and 647,036.46

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Solution

The fourth proportional to 818,708.37, 1,129,051.23 and 647,036.46 is: 892,304.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,708.37 : 1,129,051.23 = 647,036.46 : x
  2. Step 2: Convert to fraction form
    818,708.37/1,129,051.23 = 647,036.46/x
  3. Step 3: Cross multiply
    818,708.37x = 1,129,051.23 × 647,036.46
  4. Step 4: Simplify right side
    818,708.37x = 730,537,311,017.85
  5. Step 5: Solve for x
    x = 730,537,311,017.85/818,708.37
  6. Step 6: Final answer
    x = 892,304.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.