Home / 1,307,276.12-1,960,915.72-408,722.58

Finding the Fourth Proportional to 1,307,276.12, 1,960,915.72 and 408,722.58

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Solution

The fourth proportional to 1,307,276.12, 1,960,915.72 and 408,722.58 is: 613,084.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,276.12 : 1,960,915.72 = 408,722.58 : x
  2. Step 2: Convert to fraction form
    1,307,276.12/1,960,915.72 = 408,722.58/x
  3. Step 3: Cross multiply
    1,307,276.12x = 1,960,915.72 × 408,722.58
  4. Step 4: Simplify right side
    1,307,276.12x = 801,470,532,240.96
  5. Step 5: Solve for x
    x = 801,470,532,240.96/1,307,276.12
  6. Step 6: Final answer
    x = 613,084.35

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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.