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Finding the Fourth Proportional to 666,450.66, 919,699.14 and 360,526.32

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Solution

The fourth proportional to 666,450.66, 919,699.14 and 360,526.32 is: 497,524.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,450.66 : 919,699.14 = 360,526.32 : x
  2. Step 2: Convert to fraction form
    666,450.66/919,699.14 = 360,526.32/x
  3. Step 3: Cross multiply
    666,450.66x = 919,699.14 × 360,526.32
  4. Step 4: Simplify right side
    666,450.66x = 331,575,746,451.37
  5. Step 5: Solve for x
    x = 331,575,746,451.37/666,450.66
  6. Step 6: Final answer
    x = 497,524.82

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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.