Home / 1,330,018.74-1,995,308.64-431,390.68

Finding the Fourth Proportional to 1,330,018.74, 1,995,308.64 and 431,390.68

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Solution

The fourth proportional to 1,330,018.74, 1,995,308.64 and 431,390.68 is: 647,177.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,018.74 : 1,995,308.64 = 431,390.68 : x
  2. Step 2: Convert to fraction form
    1,330,018.74/1,995,308.64 = 431,390.68/x
  3. Step 3: Cross multiply
    1,330,018.74x = 1,995,308.64 × 431,390.68
  4. Step 4: Simplify right side
    1,330,018.74x = 860,757,551,019.48
  5. Step 5: Solve for x
    x = 860,757,551,019.48/1,330,018.74
  6. Step 6: Final answer
    x = 647,177.01

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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.