Home / 745,689.40-1,119,124.58-325,260.52

Finding the Fourth Proportional to 745,689.40, 1,119,124.58 and 325,260.52

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Solution

The fourth proportional to 745,689.40, 1,119,124.58 and 325,260.52 is: 488,148.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,689.40 : 1,119,124.58 = 325,260.52 : x
  2. Step 2: Convert to fraction form
    745,689.40/1,119,124.58 = 325,260.52/x
  3. Step 3: Cross multiply
    745,689.40x = 1,119,124.58 × 325,260.52
  4. Step 4: Simplify right side
    745,689.40x = 364,007,042,835.58
  5. Step 5: Solve for x
    x = 364,007,042,835.58/745,689.40
  6. Step 6: Final answer
    x = 488,148.34

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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.