Home / 1,330,026.66-1,995,320.34-431,398.47

Finding the Fourth Proportional to 1,330,026.66, 1,995,320.34 and 431,398.47

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Solution

The fourth proportional to 1,330,026.66, 1,995,320.34 and 431,398.47 is: 647,188.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,026.66 : 1,995,320.34 = 431,398.47 : x
  2. Step 2: Convert to fraction form
    1,330,026.66/1,995,320.34 = 431,398.47/x
  3. Step 3: Cross multiply
    1,330,026.66x = 1,995,320.34 × 431,398.47
  4. Step 4: Simplify right side
    1,330,026.66x = 860,778,141,835.88
  5. Step 5: Solve for x
    x = 860,778,141,835.88/1,330,026.66
  6. Step 6: Final answer
    x = 647,188.64

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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.