Home / 1,230,544.32-1,697,468.82-721,148.28

Finding the Fourth Proportional to 1,230,544.32, 1,697,468.82 and 721,148.28

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Solution

The fourth proportional to 1,230,544.32, 1,697,468.82 and 721,148.28 is: 994,784.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,544.32 : 1,697,468.82 = 721,148.28 : x
  2. Step 2: Convert to fraction form
    1,230,544.32/1,697,468.82 = 721,148.28/x
  3. Step 3: Cross multiply
    1,230,544.32x = 1,697,468.82 × 721,148.28
  4. Step 4: Simplify right side
    1,230,544.32x = 1,224,126,719,896.63
  5. Step 5: Solve for x
    x = 1,224,126,719,896.63/1,230,544.32
  6. Step 6: Final answer
    x = 994,784.75

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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.