Home / 753,210.36-1,128,854.88-352,968.30

Finding the Fourth Proportional to 753,210.36, 1,128,854.88 and 352,968.30

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Solution

The fourth proportional to 753,210.36, 1,128,854.88 and 352,968.30 is: 529,002.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,210.36 : 1,128,854.88 = 352,968.30 : x
  2. Step 2: Convert to fraction form
    753,210.36/1,128,854.88 = 352,968.30/x
  3. Step 3: Cross multiply
    753,210.36x = 1,128,854.88 × 352,968.30
  4. Step 4: Simplify right side
    753,210.36x = 398,449,987,940.30
  5. Step 5: Solve for x
    x = 398,449,987,940.30/753,210.36
  6. Step 6: Final answer
    x = 529,002.27

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.