Home / 312,579.49-469,441.23-286,228.84

Finding the Fourth Proportional to 312,579.49, 469,441.23 and 286,228.84

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Solution

The fourth proportional to 312,579.49, 469,441.23 and 286,228.84 is: 429,867.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,579.49 : 469,441.23 = 286,228.84 : x
  2. Step 2: Convert to fraction form
    312,579.49/469,441.23 = 286,228.84/x
  3. Step 3: Cross multiply
    312,579.49x = 469,441.23 × 286,228.84
  4. Step 4: Simplify right side
    312,579.49x = 134,367,618,711.07
  5. Step 5: Solve for x
    x = 134,367,618,711.07/312,579.49
  6. Step 6: Final answer
    x = 429,867.04

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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.