Home / 1,282,426.40-1,921,015.20-651,695.60

Finding the Fourth Proportional to 1,282,426.40, 1,921,015.20 and 651,695.60

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Solution

The fourth proportional to 1,282,426.40, 1,921,015.20 and 651,695.60 is: 976,209.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,426.40 : 1,921,015.20 = 651,695.60 : x
  2. Step 2: Convert to fraction form
    1,282,426.40/1,921,015.20 = 651,695.60/x
  3. Step 3: Cross multiply
    1,282,426.40x = 1,921,015.20 × 651,695.60
  4. Step 4: Simplify right side
    1,282,426.40x = 1,251,917,153,373.12
  5. Step 5: Solve for x
    x = 1,251,917,153,373.12/1,282,426.40
  6. Step 6: Final answer
    x = 976,209.75

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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.