Home / 1,258,971.60-1,737,380.88-686,011.92

Finding the Fourth Proportional to 1,258,971.60, 1,737,380.88 and 686,011.92

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Solution

The fourth proportional to 1,258,971.60, 1,737,380.88 and 686,011.92 is: 946,696.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,971.60 : 1,737,380.88 = 686,011.92 : x
  2. Step 2: Convert to fraction form
    1,258,971.60/1,737,380.88 = 686,011.92/x
  3. Step 3: Cross multiply
    1,258,971.60x = 1,737,380.88 × 686,011.92
  4. Step 4: Simplify right side
    1,258,971.60x = 1,191,863,993,260.09
  5. Step 5: Solve for x
    x = 1,191,863,993,260.09/1,258,971.60
  6. Step 6: Final answer
    x = 946,696.49

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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.