Home / 687,570.26-948,802.07-381,632.04

Finding the Fourth Proportional to 687,570.26, 948,802.07 and 381,632.04

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Solution

The fourth proportional to 687,570.26, 948,802.07 and 381,632.04 is: 526,627.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,570.26 : 948,802.07 = 381,632.04 : x
  2. Step 2: Convert to fraction form
    687,570.26/948,802.07 = 381,632.04/x
  3. Step 3: Cross multiply
    687,570.26x = 948,802.07 × 381,632.04
  4. Step 4: Simplify right side
    687,570.26x = 362,093,270,484.40
  5. Step 5: Solve for x
    x = 362,093,270,484.40/687,570.26
  6. Step 6: Final answer
    x = 526,627.31

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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.