Home / 986,231.40-1,478,909.70-453,915.60

Finding the Fourth Proportional to 986,231.40, 1,478,909.70 and 453,915.60

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Solution

The fourth proportional to 986,231.40, 1,478,909.70 and 453,915.60 is: 680,672.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,231.40 : 1,478,909.70 = 453,915.60 : x
  2. Step 2: Convert to fraction form
    986,231.40/1,478,909.70 = 453,915.60/x
  3. Step 3: Cross multiply
    986,231.40x = 1,478,909.70 × 453,915.60
  4. Step 4: Simplify right side
    986,231.40x = 671,300,183,821.32
  5. Step 5: Solve for x
    x = 671,300,183,821.32/986,231.40
  6. Step 6: Final answer
    x = 680,672.09

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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.