Home / 479,985.21-662,366.90-265,120.66

Finding the Fourth Proportional to 479,985.21, 662,366.90 and 265,120.66

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Solution

The fourth proportional to 479,985.21, 662,366.90 and 265,120.66 is: 365,859.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,985.21 : 662,366.90 = 265,120.66 : x
  2. Step 2: Convert to fraction form
    479,985.21/662,366.90 = 265,120.66/x
  3. Step 3: Cross multiply
    479,985.21x = 662,366.90 × 265,120.66
  4. Step 4: Simplify right side
    479,985.21x = 175,607,151,180.91
  5. Step 5: Solve for x
    x = 175,607,151,180.91/479,985.21
  6. Step 6: Final answer
    x = 365,859.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.