Home / 1,263,703.10-1,895,554.65-785,406.20

Finding the Fourth Proportional to 1,263,703.10, 1,895,554.65 and 785,406.20

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Solution

The fourth proportional to 1,263,703.10, 1,895,554.65 and 785,406.20 is: 1,178,109.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,703.10 : 1,895,554.65 = 785,406.20 : x
  2. Step 2: Convert to fraction form
    1,263,703.10/1,895,554.65 = 785,406.20/x
  3. Step 3: Cross multiply
    1,263,703.10x = 1,895,554.65 × 785,406.20
  4. Step 4: Simplify right side
    1,263,703.10x = 1,488,780,374,548.83
  5. Step 5: Solve for x
    x = 1,488,780,374,548.83/1,263,703.10
  6. Step 6: Final answer
    x = 1,178,109.30

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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.