Home / 1,319,921.28-1,821,518.64-746,961.30

Finding the Fourth Proportional to 1,319,921.28, 1,821,518.64 and 746,961.30

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Solution

The fourth proportional to 1,319,921.28, 1,821,518.64 and 746,961.30 is: 1,030,822.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,921.28 : 1,821,518.64 = 746,961.30 : x
  2. Step 2: Convert to fraction form
    1,319,921.28/1,821,518.64 = 746,961.30/x
  3. Step 3: Cross multiply
    1,319,921.28x = 1,821,518.64 × 746,961.30
  4. Step 4: Simplify right side
    1,319,921.28x = 1,360,603,931,308.63
  5. Step 5: Solve for x
    x = 1,360,603,931,308.63/1,319,921.28
  6. Step 6: Final answer
    x = 1,030,822.03

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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.