Home / 490,688.77-677,032.27-286,623.85

Finding the Fourth Proportional to 490,688.77, 677,032.27 and 286,623.85

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Solution

The fourth proportional to 490,688.77, 677,032.27 and 286,623.85 is: 395,471.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,688.77 : 677,032.27 = 286,623.85 : x
  2. Step 2: Convert to fraction form
    490,688.77/677,032.27 = 286,623.85/x
  3. Step 3: Cross multiply
    490,688.77x = 677,032.27 × 286,623.85
  4. Step 4: Simplify right side
    490,688.77x = 194,053,595,801.64
  5. Step 5: Solve for x
    x = 194,053,595,801.64/490,688.77
  6. Step 6: Final answer
    x = 395,471.85

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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.