Home / 1,488,445.80-2,054,031.78-809,376.36

Finding the Fourth Proportional to 1,488,445.80, 2,054,031.78 and 809,376.36

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Solution

The fourth proportional to 1,488,445.80, 2,054,031.78 and 809,376.36 is: 1,116,926.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,445.80 : 2,054,031.78 = 809,376.36 : x
  2. Step 2: Convert to fraction form
    1,488,445.80/2,054,031.78 = 809,376.36/x
  3. Step 3: Cross multiply
    1,488,445.80x = 2,054,031.78 × 809,376.36
  4. Step 4: Simplify right side
    1,488,445.80x = 1,662,484,765,420.72
  5. Step 5: Solve for x
    x = 1,662,484,765,420.72/1,488,445.80
  6. Step 6: Final answer
    x = 1,116,926.64

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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.