Home / 912,113.50-1,368,391.70-281,027.29

Finding the Fourth Proportional to 912,113.50, 1,368,391.70 and 281,027.29

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Solution

The fourth proportional to 912,113.50, 1,368,391.70 and 281,027.29 is: 421,609.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,113.50 : 1,368,391.70 = 281,027.29 : x
  2. Step 2: Convert to fraction form
    912,113.50/1,368,391.70 = 281,027.29/x
  3. Step 3: Cross multiply
    912,113.50x = 1,368,391.70 × 281,027.29
  4. Step 4: Simplify right side
    912,113.50x = 384,555,411,109.49
  5. Step 5: Solve for x
    x = 384,555,411,109.49/912,113.50
  6. Step 6: Final answer
    x = 421,609.16

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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.