Home / 825,746.58-1,139,539.86-458,231.40

Finding the Fourth Proportional to 825,746.58, 1,139,539.86 and 458,231.40

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Solution

The fourth proportional to 825,746.58, 1,139,539.86 and 458,231.40 is: 632,364.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,746.58 : 1,139,539.86 = 458,231.40 : x
  2. Step 2: Convert to fraction form
    825,746.58/1,139,539.86 = 458,231.40/x
  3. Step 3: Cross multiply
    825,746.58x = 1,139,539.86 × 458,231.40
  4. Step 4: Simplify right side
    825,746.58x = 522,172,945,403.60
  5. Step 5: Solve for x
    x = 522,172,945,403.60/825,746.58
  6. Step 6: Final answer
    x = 632,364.65

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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.