Home / 1,137,308.65-1,569,455.90-628,000.09

Finding the Fourth Proportional to 1,137,308.65, 1,569,455.90 and 628,000.09

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Solution

The fourth proportional to 1,137,308.65, 1,569,455.90 and 628,000.09 is: 866,623.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,308.65 : 1,569,455.90 = 628,000.09 : x
  2. Step 2: Convert to fraction form
    1,137,308.65/1,569,455.90 = 628,000.09/x
  3. Step 3: Cross multiply
    1,137,308.65x = 1,569,455.90 × 628,000.09
  4. Step 4: Simplify right side
    1,137,308.65x = 985,618,441,742.39
  5. Step 5: Solve for x
    x = 985,618,441,742.39/1,137,308.65
  6. Step 6: Final answer
    x = 866,623.54

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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.