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Finding the Fourth Proportional to 606,047.81, 909,339.51 and 317,790.63

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Solution

The fourth proportional to 606,047.81, 909,339.51 and 317,790.63 is: 476,826.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,047.81 : 909,339.51 = 317,790.63 : x
  2. Step 2: Convert to fraction form
    606,047.81/909,339.51 = 317,790.63/x
  3. Step 3: Cross multiply
    606,047.81x = 909,339.51 × 317,790.63
  4. Step 4: Simplify right side
    606,047.81x = 288,979,575,766.79
  5. Step 5: Solve for x
    x = 288,979,575,766.79/606,047.81
  6. Step 6: Final answer
    x = 476,826.37

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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.