Home / 1,115,225.40-1,672,838.10-405,276.60

Finding the Fourth Proportional to 1,115,225.40, 1,672,838.10 and 405,276.60

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Solution

The fourth proportional to 1,115,225.40, 1,672,838.10 and 405,276.60 is: 607,914.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,225.40 : 1,672,838.10 = 405,276.60 : x
  2. Step 2: Convert to fraction form
    1,115,225.40/1,672,838.10 = 405,276.60/x
  3. Step 3: Cross multiply
    1,115,225.40x = 1,672,838.10 × 405,276.60
  4. Step 4: Simplify right side
    1,115,225.40x = 677,962,137,518.46
  5. Step 5: Solve for x
    x = 677,962,137,518.46/1,115,225.40
  6. Step 6: Final answer
    x = 607,914.90

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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.