Home / 1,258,774.32-1,737,128.48-685,814.32

Finding the Fourth Proportional to 1,258,774.32, 1,737,128.48 and 685,814.32

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Solution

The fourth proportional to 1,258,774.32, 1,737,128.48 and 685,814.32 is: 946,434.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,774.32 : 1,737,128.48 = 685,814.32 : x
  2. Step 2: Convert to fraction form
    1,258,774.32/1,737,128.48 = 685,814.32/x
  3. Step 3: Cross multiply
    1,258,774.32x = 1,737,128.48 × 685,814.32
  4. Step 4: Simplify right side
    1,258,774.32x = 1,191,347,587,263.83
  5. Step 5: Solve for x
    x = 1,191,347,587,263.83/1,258,774.32
  6. Step 6: Final answer
    x = 946,434.61

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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.