Home / 762,789.76-1,052,678-418,636.16

Finding the Fourth Proportional to 762,789.76, 1,052,678 and 418,636.16

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Solution

The fourth proportional to 762,789.76, 1,052,678 and 418,636.16 is: 577,733.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,789.76 : 1,052,678 = 418,636.16 : x
  2. Step 2: Convert to fraction form
    762,789.76/1,052,678 = 418,636.16/x
  3. Step 3: Cross multiply
    762,789.76x = 1,052,678 × 418,636.16
  4. Step 4: Simplify right side
    762,789.76x = 440,689,075,636.48
  5. Step 5: Solve for x
    x = 440,689,075,636.48/762,789.76
  6. Step 6: Final answer
    x = 577,733.34

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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.