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Finding the Fourth Proportional to 703,480.69, 970,801.77 and 381,199.51

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Solution

The fourth proportional to 703,480.69, 970,801.77 and 381,199.51 is: 526,054.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,480.69 : 970,801.77 = 381,199.51 : x
  2. Step 2: Convert to fraction form
    703,480.69/970,801.77 = 381,199.51/x
  3. Step 3: Cross multiply
    703,480.69x = 970,801.77 × 381,199.51
  4. Step 4: Simplify right side
    703,480.69x = 370,069,159,031.13
  5. Step 5: Solve for x
    x = 370,069,159,031.13/703,480.69
  6. Step 6: Final answer
    x = 526,054.47

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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.