Home / 912,884.10-1,369,358.55-281,796.90

Finding the Fourth Proportional to 912,884.10, 1,369,358.55 and 281,796.90

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Solution

The fourth proportional to 912,884.10, 1,369,358.55 and 281,796.90 is: 422,705.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,884.10 : 1,369,358.55 = 281,796.90 : x
  2. Step 2: Convert to fraction form
    912,884.10/1,369,358.55 = 281,796.90/x
  3. Step 3: Cross multiply
    912,884.10x = 1,369,358.55 × 281,796.90
  4. Step 4: Simplify right side
    912,884.10x = 385,880,994,378.50
  5. Step 5: Solve for x
    x = 385,880,994,378.50/912,884.10
  6. Step 6: Final answer
    x = 422,705.35

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Double scale
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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.