Home / 774,818.78-1,069,336.66-469,063.76

Finding the Fourth Proportional to 774,818.78, 1,069,336.66 and 469,063.76

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Solution

The fourth proportional to 774,818.78, 1,069,336.66 and 469,063.76 is: 647,360.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,818.78 : 1,069,336.66 = 469,063.76 : x
  2. Step 2: Convert to fraction form
    774,818.78/1,069,336.66 = 469,063.76/x
  3. Step 3: Cross multiply
    774,818.78x = 1,069,336.66 × 469,063.76
  4. Step 4: Simplify right side
    774,818.78x = 501,587,074,445.44
  5. Step 5: Solve for x
    x = 501,587,074,445.44/774,818.78
  6. Step 6: Final answer
    x = 647,360.50

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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.