Home / 912,488.40-1,368,626.04-281,347.92

Finding the Fourth Proportional to 912,488.40, 1,368,626.04 and 281,347.92

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Solution

The fourth proportional to 912,488.40, 1,368,626.04 and 281,347.92 is: 421,989.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,488.40 : 1,368,626.04 = 281,347.92 : x
  2. Step 2: Convert to fraction form
    912,488.40/1,368,626.04 = 281,347.92/x
  3. Step 3: Cross multiply
    912,488.40x = 1,368,626.04 × 281,347.92
  4. Step 4: Simplify right side
    912,488.40x = 385,060,089,611.84
  5. Step 5: Solve for x
    x = 385,060,089,611.84/912,488.40
  6. Step 6: Final answer
    x = 421,989.02

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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.