Home / 1,317,628.80-1,976,540.40-476,071.20

Finding the Fourth Proportional to 1,317,628.80, 1,976,540.40 and 476,071.20

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Solution

The fourth proportional to 1,317,628.80, 1,976,540.40 and 476,071.20 is: 714,141.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,628.80 : 1,976,540.40 = 476,071.20 : x
  2. Step 2: Convert to fraction form
    1,317,628.80/1,976,540.40 = 476,071.20/x
  3. Step 3: Cross multiply
    1,317,628.80x = 1,976,540.40 × 476,071.20
  4. Step 4: Simplify right side
    1,317,628.80x = 940,973,960,076.48
  5. Step 5: Solve for x
    x = 940,973,960,076.48/1,317,628.80
  6. Step 6: Final answer
    x = 714,141.92

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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.