Home / 2,802,419.10-4,203,045.45-780,140.70

Finding the Fourth Proportional to 2,802,419.10, 4,203,045.45 and 780,140.70

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Solution

The fourth proportional to 2,802,419.10, 4,203,045.45 and 780,140.70 is: 1,170,048.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802,419.10 : 4,203,045.45 = 780,140.70 : x
  2. Step 2: Convert to fraction form
    2,802,419.10/4,203,045.45 = 780,140.70/x
  3. Step 3: Cross multiply
    2,802,419.10x = 4,203,045.45 × 780,140.70
  4. Step 4: Simplify right side
    2,802,419.10x = 3,278,966,819,494.82
  5. Step 5: Solve for x
    x = 3,278,966,819,494.82/2,802,419.10
  6. Step 6: Final answer
    x = 1,170,048.70

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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.