Home / 1,501,680.76-2,072,319.82-822,641.40

Finding the Fourth Proportional to 1,501,680.76, 2,072,319.82 and 822,641.40

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Solution

The fourth proportional to 1,501,680.76, 2,072,319.82 and 822,641.40 is: 1,135,245.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,501,680.76 : 2,072,319.82 = 822,641.40 : x
  2. Step 2: Convert to fraction form
    1,501,680.76/2,072,319.82 = 822,641.40/x
  3. Step 3: Cross multiply
    1,501,680.76x = 2,072,319.82 × 822,641.40
  4. Step 4: Simplify right side
    1,501,680.76x = 1,704,776,077,972.55
  5. Step 5: Solve for x
    x = 1,704,776,077,972.55/1,501,680.76
  6. Step 6: Final answer
    x = 1,135,245.34

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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.