Home / 1,128,589.56-1,692,878.52-399,653.64

Finding the Fourth Proportional to 1,128,589.56, 1,692,878.52 and 399,653.64

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Solution

The fourth proportional to 1,128,589.56, 1,692,878.52 and 399,653.64 is: 599,478.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,589.56 : 1,692,878.52 = 399,653.64 : x
  2. Step 2: Convert to fraction form
    1,128,589.56/1,692,878.52 = 399,653.64/x
  3. Step 3: Cross multiply
    1,128,589.56x = 1,692,878.52 × 399,653.64
  4. Step 4: Simplify right side
    1,128,589.56x = 676,565,062,595.81
  5. Step 5: Solve for x
    x = 676,565,062,595.81/1,128,589.56
  6. Step 6: Final answer
    x = 599,478.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.