Home / 1,234,890.72-1,702,515.60-890,438.40

Finding the Fourth Proportional to 1,234,890.72, 1,702,515.60 and 890,438.40

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Solution

The fourth proportional to 1,234,890.72, 1,702,515.60 and 890,438.40 is: 1,227,627.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,234,890.72 : 1,702,515.60 = 890,438.40 : x
  2. Step 2: Convert to fraction form
    1,234,890.72/1,702,515.60 = 890,438.40/x
  3. Step 3: Cross multiply
    1,234,890.72x = 1,702,515.60 × 890,438.40
  4. Step 4: Simplify right side
    1,234,890.72x = 1,515,985,266,839.04
  5. Step 5: Solve for x
    x = 1,515,985,266,839.04/1,234,890.72
  6. Step 6: Final answer
    x = 1,227,627.06

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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.