Home / 1,078,662.34-1,617,045.72-439,503.54

Finding the Fourth Proportional to 1,078,662.34, 1,617,045.72 and 439,503.54

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Solution

The fourth proportional to 1,078,662.34, 1,617,045.72 and 439,503.54 is: 658,869.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,662.34 : 1,617,045.72 = 439,503.54 : x
  2. Step 2: Convert to fraction form
    1,078,662.34/1,617,045.72 = 439,503.54/x
  3. Step 3: Cross multiply
    1,078,662.34x = 1,617,045.72 × 439,503.54
  4. Step 4: Simplify right side
    1,078,662.34x = 710,697,318,281.85
  5. Step 5: Solve for x
    x = 710,697,318,281.85/1,078,662.34
  6. Step 6: Final answer
    x = 658,869.13

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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.