Home / 1,330,018.42-1,995,308.14-431,390.36

Finding the Fourth Proportional to 1,330,018.42, 1,995,308.14 and 431,390.36

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Solution

The fourth proportional to 1,330,018.42, 1,995,308.14 and 431,390.36 is: 647,176.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,018.42 : 1,995,308.14 = 431,390.36 : x
  2. Step 2: Convert to fraction form
    1,330,018.42/1,995,308.14 = 431,390.36/x
  3. Step 3: Cross multiply
    1,330,018.42x = 1,995,308.14 × 431,390.36
  4. Step 4: Simplify right side
    1,330,018.42x = 860,756,696,825.53
  5. Step 5: Solve for x
    x = 860,756,696,825.53/1,330,018.42
  6. Step 6: Final answer
    x = 647,176.52

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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.