Home / 1,354,933.20-1,869,673.12-782,157.92

Finding the Fourth Proportional to 1,354,933.20, 1,869,673.12 and 782,157.92

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Solution

The fourth proportional to 1,354,933.20, 1,869,673.12 and 782,157.92 is: 1,079,300.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354,933.20 : 1,869,673.12 = 782,157.92 : x
  2. Step 2: Convert to fraction form
    1,354,933.20/1,869,673.12 = 782,157.92/x
  3. Step 3: Cross multiply
    1,354,933.20x = 1,869,673.12 × 782,157.92
  4. Step 4: Simplify right side
    1,354,933.20x = 1,462,379,638,619.11
  5. Step 5: Solve for x
    x = 1,462,379,638,619.11/1,354,933.20
  6. Step 6: Final answer
    x = 1,079,300.17

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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.