Home / 880,776.51-1,215,397.38-488,319.97

Finding the Fourth Proportional to 880,776.51, 1,215,397.38 and 488,319.97

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Solution

The fourth proportional to 880,776.51, 1,215,397.38 and 488,319.97 is: 673,840.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,776.51 : 1,215,397.38 = 488,319.97 : x
  2. Step 2: Convert to fraction form
    880,776.51/1,215,397.38 = 488,319.97/x
  3. Step 3: Cross multiply
    880,776.51x = 1,215,397.38 × 488,319.97
  4. Step 4: Simplify right side
    880,776.51x = 593,502,810,932.39
  5. Step 5: Solve for x
    x = 593,502,810,932.39/880,776.51
  6. Step 6: Final answer
    x = 673,840.42

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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.