Home / 763,645.35-1,053,796.47-457,890.50

Finding the Fourth Proportional to 763,645.35, 1,053,796.47 and 457,890.50

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Solution

The fourth proportional to 763,645.35, 1,053,796.47 and 457,890.50 is: 631,868.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,645.35 : 1,053,796.47 = 457,890.50 : x
  2. Step 2: Convert to fraction form
    763,645.35/1,053,796.47 = 457,890.50/x
  3. Step 3: Cross multiply
    763,645.35x = 1,053,796.47 × 457,890.50
  4. Step 4: Simplify right side
    763,645.35x = 482,523,387,277.55
  5. Step 5: Solve for x
    x = 482,523,387,277.55/763,645.35
  6. Step 6: Final answer
    x = 631,868.43

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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.