Home / 680,615.60-1,020,923.40-281,123.60

Finding the Fourth Proportional to 680,615.60, 1,020,923.40 and 281,123.60

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Solution

The fourth proportional to 680,615.60, 1,020,923.40 and 281,123.60 is: 421,685.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,615.60 : 1,020,923.40 = 281,123.60 : x
  2. Step 2: Convert to fraction form
    680,615.60/1,020,923.40 = 281,123.60/x
  3. Step 3: Cross multiply
    680,615.60x = 1,020,923.40 × 281,123.60
  4. Step 4: Simplify right side
    680,615.60x = 287,005,661,532.24
  5. Step 5: Solve for x
    x = 287,005,661,532.24/680,615.60
  6. Step 6: Final answer
    x = 421,685.40

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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.