Home / 757,980.72-1,046,006.64-418,441.68

Finding the Fourth Proportional to 757,980.72, 1,046,006.64 and 418,441.68

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Solution

The fourth proportional to 757,980.72, 1,046,006.64 and 418,441.68 is: 577,445.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,980.72 : 1,046,006.64 = 418,441.68 : x
  2. Step 2: Convert to fraction form
    757,980.72/1,046,006.64 = 418,441.68/x
  3. Step 3: Cross multiply
    757,980.72x = 1,046,006.64 × 418,441.68
  4. Step 4: Simplify right side
    757,980.72x = 437,692,775,732.76
  5. Step 5: Solve for x
    x = 437,692,775,732.76/757,980.72
  6. Step 6: Final answer
    x = 577,445.79

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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.