Home / 1,100,071.72-1,518,169.08-616,637.08

Finding the Fourth Proportional to 1,100,071.72, 1,518,169.08 and 616,637.08

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Solution

The fourth proportional to 1,100,071.72, 1,518,169.08 and 616,637.08 is: 850,998.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,071.72 : 1,518,169.08 = 616,637.08 : x
  2. Step 2: Convert to fraction form
    1,100,071.72/1,518,169.08 = 616,637.08/x
  3. Step 3: Cross multiply
    1,100,071.72x = 1,518,169.08 × 616,637.08
  4. Step 4: Simplify right side
    1,100,071.72x = 936,159,348,437.49
  5. Step 5: Solve for x
    x = 936,159,348,437.49/1,100,071.72
  6. Step 6: Final answer
    x = 850,998.47

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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.