Home / 666,942.90-1,001,070.45-330,363.60

Finding the Fourth Proportional to 666,942.90, 1,001,070.45 and 330,363.60

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Solution

The fourth proportional to 666,942.90, 1,001,070.45 and 330,363.60 is: 495,870.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,942.90 : 1,001,070.45 = 330,363.60 : x
  2. Step 2: Convert to fraction form
    666,942.90/1,001,070.45 = 330,363.60/x
  3. Step 3: Cross multiply
    666,942.90x = 1,001,070.45 × 330,363.60
  4. Step 4: Simplify right side
    666,942.90x = 330,717,237,715.62
  5. Step 5: Solve for x
    x = 330,717,237,715.62/666,942.90
  6. Step 6: Final answer
    x = 495,870.39

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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.