Home / 815,442.65-1,223,068.92-216,450.35

Finding the Fourth Proportional to 815,442.65, 1,223,068.92 and 216,450.35

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Solution

The fourth proportional to 815,442.65, 1,223,068.92 and 216,450.35 is: 324,650.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,442.65 : 1,223,068.92 = 216,450.35 : x
  2. Step 2: Convert to fraction form
    815,442.65/1,223,068.92 = 216,450.35/x
  3. Step 3: Cross multiply
    815,442.65x = 1,223,068.92 × 216,450.35
  4. Step 4: Simplify right side
    815,442.65x = 264,733,689,692.78
  5. Step 5: Solve for x
    x = 264,733,689,692.78/815,442.65
  6. Step 6: Final answer
    x = 324,650.29

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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.