Home / 907,359.40-1,361,039.10-809,381.80

Finding the Fourth Proportional to 907,359.40, 1,361,039.10 and 809,381.80

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Solution

The fourth proportional to 907,359.40, 1,361,039.10 and 809,381.80 is: 1,214,072.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,359.40 : 1,361,039.10 = 809,381.80 : x
  2. Step 2: Convert to fraction form
    907,359.40/1,361,039.10 = 809,381.80/x
  3. Step 3: Cross multiply
    907,359.40x = 1,361,039.10 × 809,381.80
  4. Step 4: Simplify right side
    907,359.40x = 1,101,600,276,628.38
  5. Step 5: Solve for x
    x = 1,101,600,276,628.38/907,359.40
  6. Step 6: Final answer
    x = 1,214,072.70

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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.