Home / 912,558.60-1,368,381.06-281,390.40

Finding the Fourth Proportional to 912,558.60, 1,368,381.06 and 281,390.40

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Solution

The fourth proportional to 912,558.60, 1,368,381.06 and 281,390.40 is: 421,944.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,558.60 : 1,368,381.06 = 281,390.40 : x
  2. Step 2: Convert to fraction form
    912,558.60/1,368,381.06 = 281,390.40/x
  3. Step 3: Cross multiply
    912,558.60x = 1,368,381.06 × 281,390.40
  4. Step 4: Simplify right side
    912,558.60x = 385,049,293,825.82
  5. Step 5: Solve for x
    x = 385,049,293,825.82/912,558.60
  6. Step 6: Final answer
    x = 421,944.73

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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.