Home / 868,429.86-1,302,770.34-328,539.76

Finding the Fourth Proportional to 868,429.86, 1,302,770.34 and 328,539.76

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Solution

The fourth proportional to 868,429.86, 1,302,770.34 and 328,539.76 is: 492,857.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,429.86 : 1,302,770.34 = 328,539.76 : x
  2. Step 2: Convert to fraction form
    868,429.86/1,302,770.34 = 328,539.76/x
  3. Step 3: Cross multiply
    868,429.86x = 1,302,770.34 × 328,539.76
  4. Step 4: Simplify right side
    868,429.86x = 428,011,854,838.72
  5. Step 5: Solve for x
    x = 428,011,854,838.72/868,429.86
  6. Step 6: Final answer
    x = 492,857.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.