Home / 880,741.44-1,215,425.52-518,178.96

Finding the Fourth Proportional to 880,741.44, 1,215,425.52 and 518,178.96

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Solution

The fourth proportional to 880,741.44, 1,215,425.52 and 518,178.96 is: 715,088.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,741.44 : 1,215,425.52 = 518,178.96 : x
  2. Step 2: Convert to fraction form
    880,741.44/1,215,425.52 = 518,178.96/x
  3. Step 3: Cross multiply
    880,741.44x = 1,215,425.52 × 518,178.96
  4. Step 4: Simplify right side
    880,741.44x = 629,807,931,911.06
  5. Step 5: Solve for x
    x = 629,807,931,911.06/880,741.44
  6. Step 6: Final answer
    x = 715,088.34

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Double scale
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Similar ratio
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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.