Home / 738,447.30-1,107,002.70-513,915.30

Finding the Fourth Proportional to 738,447.30, 1,107,002.70 and 513,915.30

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Solution

The fourth proportional to 738,447.30, 1,107,002.70 and 513,915.30 is: 770,407.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,447.30 : 1,107,002.70 = 513,915.30 : x
  2. Step 2: Convert to fraction form
    738,447.30/1,107,002.70 = 513,915.30/x
  3. Step 3: Cross multiply
    738,447.30x = 1,107,002.70 × 513,915.30
  4. Step 4: Simplify right side
    738,447.30x = 568,905,624,671.31
  5. Step 5: Solve for x
    x = 568,905,624,671.31/738,447.30
  6. Step 6: Final answer
    x = 770,407.89

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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.