Home / 485,973.57-728,966.84-170,439.69

Finding the Fourth Proportional to 485,973.57, 728,966.84 and 170,439.69

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Solution

The fourth proportional to 485,973.57, 728,966.84 and 170,439.69 is: 255,661.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,973.57 : 728,966.84 = 170,439.69 : x
  2. Step 2: Convert to fraction form
    485,973.57/728,966.84 = 170,439.69/x
  3. Step 3: Cross multiply
    485,973.57x = 728,966.84 × 170,439.69
  4. Step 4: Simplify right side
    485,973.57x = 124,244,881,377.68
  5. Step 5: Solve for x
    x = 124,244,881,377.68/485,973.57
  6. Step 6: Final answer
    x = 255,661.81

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1.5x scale

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.