Home / 929,639.70-1,283,031.48-521,765.82

Finding the Fourth Proportional to 929,639.70, 1,283,031.48 and 521,765.82

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Solution

The fourth proportional to 929,639.70, 1,283,031.48 and 521,765.82 is: 720,109.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,639.70 : 1,283,031.48 = 521,765.82 : x
  2. Step 2: Convert to fraction form
    929,639.70/1,283,031.48 = 521,765.82/x
  3. Step 3: Cross multiply
    929,639.70x = 1,283,031.48 × 521,765.82
  4. Step 4: Simplify right side
    929,639.70x = 669,441,972,248.01
  5. Step 5: Solve for x
    x = 669,441,972,248.01/929,639.70
  6. Step 6: Final answer
    x = 720,109.06

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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.