Home / 931,685.64-1,285,771.74-523,915.80

Finding the Fourth Proportional to 931,685.64, 1,285,771.74 and 523,915.80

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Solution

The fourth proportional to 931,685.64, 1,285,771.74 and 523,915.80 is: 723,029.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,685.64 : 1,285,771.74 = 523,915.80 : x
  2. Step 2: Convert to fraction form
    931,685.64/1,285,771.74 = 523,915.80/x
  3. Step 3: Cross multiply
    931,685.64x = 1,285,771.74 × 523,915.80
  4. Step 4: Simplify right side
    931,685.64x = 673,636,129,779.49
  5. Step 5: Solve for x
    x = 673,636,129,779.49/931,685.64
  6. Step 6: Final answer
    x = 723,029.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.