Home / 745,516.35-1,028,751.84-418,811.58

Finding the Fourth Proportional to 745,516.35, 1,028,751.84 and 418,811.58

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Solution

The fourth proportional to 745,516.35, 1,028,751.84 and 418,811.58 is: 577,925.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,516.35 : 1,028,751.84 = 418,811.58 : x
  2. Step 2: Convert to fraction form
    745,516.35/1,028,751.84 = 418,811.58/x
  3. Step 3: Cross multiply
    745,516.35x = 1,028,751.84 × 418,811.58
  4. Step 4: Simplify right side
    745,516.35x = 430,853,183,538.31
  5. Step 5: Solve for x
    x = 430,853,183,538.31/745,516.35
  6. Step 6: Final answer
    x = 577,925.87

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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.