Home / 1,430,033.79-1,973,790.31-818,541.07

Finding the Fourth Proportional to 1,430,033.79, 1,973,790.31 and 818,541.07

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Solution

The fourth proportional to 1,430,033.79, 1,973,790.31 and 818,541.07 is: 1,129,783.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,033.79 : 1,973,790.31 = 818,541.07 : x
  2. Step 2: Convert to fraction form
    1,430,033.79/1,973,790.31 = 818,541.07/x
  3. Step 3: Cross multiply
    1,430,033.79x = 1,973,790.31 × 818,541.07
  4. Step 4: Simplify right side
    1,430,033.79x = 1,615,628,432,303.03
  5. Step 5: Solve for x
    x = 1,615,628,432,303.03/1,430,033.79
  6. Step 6: Final answer
    x = 1,129,783.40

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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.