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Finding the Fourth Proportional to 486,613.68, 729,920.48 and 249,824.76

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Solution

The fourth proportional to 486,613.68, 729,920.48 and 249,824.76 is: 374,737.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,613.68 : 729,920.48 = 249,824.76 : x
  2. Step 2: Convert to fraction form
    486,613.68/729,920.48 = 249,824.76/x
  3. Step 3: Cross multiply
    486,613.68x = 729,920.48 × 249,824.76
  4. Step 4: Simplify right side
    486,613.68x = 182,352,208,735.09
  5. Step 5: Solve for x
    x = 182,352,208,735.09/486,613.68
  6. Step 6: Final answer
    x = 374,737.12

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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.