Home / 929,669.76-1,282,890.30-521,733.48

Finding the Fourth Proportional to 929,669.76, 1,282,890.30 and 521,733.48

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Solution

The fourth proportional to 929,669.76, 1,282,890.30 and 521,733.48 is: 719,961.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,669.76 : 1,282,890.30 = 521,733.48 : x
  2. Step 2: Convert to fraction form
    929,669.76/1,282,890.30 = 521,733.48/x
  3. Step 3: Cross multiply
    929,669.76x = 1,282,890.30 × 521,733.48
  4. Step 4: Simplify right side
    929,669.76x = 669,326,820,677.24
  5. Step 5: Solve for x
    x = 669,326,820,677.24/929,669.76
  6. Step 6: Final answer
    x = 719,961.91

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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.