Home / 1,314,139.10-1,971,208.65-515,446.70

Finding the Fourth Proportional to 1,314,139.10, 1,971,208.65 and 515,446.70

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Solution

The fourth proportional to 1,314,139.10, 1,971,208.65 and 515,446.70 is: 773,170.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,139.10 : 1,971,208.65 = 515,446.70 : x
  2. Step 2: Convert to fraction form
    1,314,139.10/1,971,208.65 = 515,446.70/x
  3. Step 3: Cross multiply
    1,314,139.10x = 1,971,208.65 × 515,446.70
  4. Step 4: Simplify right side
    1,314,139.10x = 1,016,052,993,653.96
  5. Step 5: Solve for x
    x = 1,016,052,993,653.96/1,314,139.10
  6. Step 6: Final answer
    x = 773,170.05

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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.