Home / 816,021.84-1,126,087.60-453,436.32

Finding the Fourth Proportional to 816,021.84, 1,126,087.60 and 453,436.32

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Solution

The fourth proportional to 816,021.84, 1,126,087.60 and 453,436.32 is: 625,729.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,021.84 : 1,126,087.60 = 453,436.32 : x
  2. Step 2: Convert to fraction form
    816,021.84/1,126,087.60 = 453,436.32/x
  3. Step 3: Cross multiply
    816,021.84x = 1,126,087.60 × 453,436.32
  4. Step 4: Simplify right side
    816,021.84x = 510,609,017,341.63
  5. Step 5: Solve for x
    x = 510,609,017,341.63/816,021.84
  6. Step 6: Final answer
    x = 625,729.60

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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.