Home / 3,428,365.85-5,138,036.87-1,912,762.40

Finding the Fourth Proportional to 3,428,365.85, 5,138,036.87 and 1,912,762.40

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Solution

The fourth proportional to 3,428,365.85, 5,138,036.87 and 1,912,762.40 is: 2,866,626.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428,365.85 : 5,138,036.87 = 1,912,762.40 : x
  2. Step 2: Convert to fraction form
    3,428,365.85/5,138,036.87 = 1,912,762.40/x
  3. Step 3: Cross multiply
    3,428,365.85x = 5,138,036.87 × 1,912,762.40
  4. Step 4: Simplify right side
    3,428,365.85x = 9,827,843,699,495.69
  5. Step 5: Solve for x
    x = 9,827,843,699,495.69/3,428,365.85
  6. Step 6: Final answer
    x = 2,866,626.30

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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.