Home / 1,175,159.52-1,621,628.64-665,941.68

Finding the Fourth Proportional to 1,175,159.52, 1,621,628.64 and 665,941.68

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Solution

The fourth proportional to 1,175,159.52, 1,621,628.64 and 665,941.68 is: 918,947.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175,159.52 : 1,621,628.64 = 665,941.68 : x
  2. Step 2: Convert to fraction form
    1,175,159.52/1,621,628.64 = 665,941.68/x
  3. Step 3: Cross multiply
    1,175,159.52x = 1,621,628.64 × 665,941.68
  4. Step 4: Simplify right side
    1,175,159.52x = 1,079,910,100,857.72
  5. Step 5: Solve for x
    x = 1,079,910,100,857.72/1,175,159.52
  6. Step 6: Final answer
    x = 918,947.67

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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.