Home / 1,230,444.45-1,845,953.74-420,835.15

Finding the Fourth Proportional to 1,230,444.45, 1,845,953.74 and 420,835.15

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Solution

The fourth proportional to 1,230,444.45, 1,845,953.74 and 420,835.15 is: 631,350.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,444.45 : 1,845,953.74 = 420,835.15 : x
  2. Step 2: Convert to fraction form
    1,230,444.45/1,845,953.74 = 420,835.15/x
  3. Step 3: Cross multiply
    1,230,444.45x = 1,845,953.74 × 420,835.15
  4. Step 4: Simplify right side
    1,230,444.45x = 776,842,213,398.99
  5. Step 5: Solve for x
    x = 776,842,213,398.99/1,230,444.45
  6. Step 6: Final answer
    x = 631,350.90

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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.