Home / 1,258,775.32-1,737,129.86-685,815.32

Finding the Fourth Proportional to 1,258,775.32, 1,737,129.86 and 685,815.32

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Solution

The fourth proportional to 1,258,775.32, 1,737,129.86 and 685,815.32 is: 946,435.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,775.32 : 1,737,129.86 = 685,815.32 : x
  2. Step 2: Convert to fraction form
    1,258,775.32/1,737,129.86 = 685,815.32/x
  3. Step 3: Cross multiply
    1,258,775.32x = 1,737,129.86 × 685,815.32
  4. Step 4: Simplify right side
    1,258,775.32x = 1,191,350,270,817.46
  5. Step 5: Solve for x
    x = 1,191,350,270,817.46/1,258,775.32
  6. Step 6: Final answer
    x = 946,435.99

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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.