Home / 1,100,072.40-1,518,207.48-616,638.48

Finding the Fourth Proportional to 1,100,072.40, 1,518,207.48 and 616,638.48

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Solution

The fourth proportional to 1,100,072.40, 1,518,207.48 and 616,638.48 is: 851,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,072.40 : 1,518,207.48 = 616,638.48 : x
  2. Step 2: Convert to fraction form
    1,100,072.40/1,518,207.48 = 616,638.48/x
  3. Step 3: Cross multiply
    1,100,072.40x = 1,518,207.48 × 616,638.48
  4. Step 4: Simplify right side
    1,100,072.40x = 936,185,152,791.83
  5. Step 5: Solve for x
    x = 936,185,152,791.83/1,100,072.40
  6. Step 6: Final answer
    x = 851,021.40

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Double scale
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1.5x scale

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.