Home / 751,394.85-1,127,104.59-218,945.13

Finding the Fourth Proportional to 751,394.85, 1,127,104.59 and 218,945.13

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Solution

The fourth proportional to 751,394.85, 1,127,104.59 and 218,945.13 is: 328,421.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,394.85 : 1,127,104.59 = 218,945.13 : x
  2. Step 2: Convert to fraction form
    751,394.85/1,127,104.59 = 218,945.13/x
  3. Step 3: Cross multiply
    751,394.85x = 1,127,104.59 × 218,945.13
  4. Step 4: Simplify right side
    751,394.85x = 246,774,060,981.15
  5. Step 5: Solve for x
    x = 246,774,060,981.15/751,394.85
  6. Step 6: Final answer
    x = 328,421.28

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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.