Home / 1,330,101.90-1,995,444.45-431,390.70

Finding the Fourth Proportional to 1,330,101.90, 1,995,444.45 and 431,390.70

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Solution

The fourth proportional to 1,330,101.90, 1,995,444.45 and 431,390.70 is: 647,180.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,101.90 : 1,995,444.45 = 431,390.70 : x
  2. Step 2: Convert to fraction form
    1,330,101.90/1,995,444.45 = 431,390.70/x
  3. Step 3: Cross multiply
    1,330,101.90x = 1,995,444.45 × 431,390.70
  4. Step 4: Simplify right side
    1,330,101.90x = 860,816,178,096.62
  5. Step 5: Solve for x
    x = 860,816,178,096.62/1,330,101.90
  6. Step 6: Final answer
    x = 647,180.62

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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.