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Finding the Fourth Proportional to 490,673.17, 736,074.15 and 170,790.40

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Solution

The fourth proportional to 490,673.17, 736,074.15 and 170,790.40 is: 256,208.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,673.17 : 736,074.15 = 170,790.40 : x
  2. Step 2: Convert to fraction form
    490,673.17/736,074.15 = 170,790.40/x
  3. Step 3: Cross multiply
    490,673.17x = 736,074.15 × 170,790.40
  4. Step 4: Simplify right side
    490,673.17x = 125,714,398,508.16
  5. Step 5: Solve for x
    x = 125,714,398,508.16/490,673.17
  6. Step 6: Final answer
    x = 256,208.01

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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.