Home / 815,492.88-1,125,212.31-471,205.62

Finding the Fourth Proportional to 815,492.88, 1,125,212.31 and 471,205.62

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Solution

The fourth proportional to 815,492.88, 1,125,212.31 and 471,205.62 is: 650,166.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,492.88 : 1,125,212.31 = 471,205.62 : x
  2. Step 2: Convert to fraction form
    815,492.88/1,125,212.31 = 471,205.62/x
  3. Step 3: Cross multiply
    815,492.88x = 1,125,212.31 × 471,205.62
  4. Step 4: Simplify right side
    815,492.88x = 530,206,364,165.18
  5. Step 5: Solve for x
    x = 530,206,364,165.18/815,492.88
  6. Step 6: Final answer
    x = 650,166.76

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Double scale
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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.