Home / 1,159,489.90-1,739,234.85-411,438.70

Finding the Fourth Proportional to 1,159,489.90, 1,739,234.85 and 411,438.70

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Solution

The fourth proportional to 1,159,489.90, 1,739,234.85 and 411,438.70 is: 617,158.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,489.90 : 1,739,234.85 = 411,438.70 : x
  2. Step 2: Convert to fraction form
    1,159,489.90/1,739,234.85 = 411,438.70/x
  3. Step 3: Cross multiply
    1,159,489.90x = 1,739,234.85 × 411,438.70
  4. Step 4: Simplify right side
    1,159,489.90x = 715,588,525,678.70
  5. Step 5: Solve for x
    x = 715,588,525,678.70/1,159,489.90
  6. Step 6: Final answer
    x = 617,158.05

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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.