Home / 637,116.15-879,022.37-361,428.63

Finding the Fourth Proportional to 637,116.15, 879,022.37 and 361,428.63

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Solution

The fourth proportional to 637,116.15, 879,022.37 and 361,428.63 is: 498,659.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,116.15 : 879,022.37 = 361,428.63 : x
  2. Step 2: Convert to fraction form
    637,116.15/879,022.37 = 361,428.63/x
  3. Step 3: Cross multiply
    637,116.15x = 879,022.37 × 361,428.63
  4. Step 4: Simplify right side
    637,116.15x = 317,703,846,502.66
  5. Step 5: Solve for x
    x = 317,703,846,502.66/637,116.15
  6. Step 6: Final answer
    x = 498,659.23

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1.5x scale

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.