Home / 1,039,511.40-1,559,121.30-329,611.20

Finding the Fourth Proportional to 1,039,511.40, 1,559,121.30 and 329,611.20

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Solution

The fourth proportional to 1,039,511.40, 1,559,121.30 and 329,611.20 is: 494,370.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,511.40 : 1,559,121.30 = 329,611.20 : x
  2. Step 2: Convert to fraction form
    1,039,511.40/1,559,121.30 = 329,611.20/x
  3. Step 3: Cross multiply
    1,039,511.40x = 1,559,121.30 × 329,611.20
  4. Step 4: Simplify right side
    1,039,511.40x = 513,903,842,638.56
  5. Step 5: Solve for x
    x = 513,903,842,638.56/1,039,511.40
  6. Step 6: Final answer
    x = 494,370.57

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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.