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Finding the Fourth Proportional to 486,617.70, 729,926.46 and 249,828.78

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Solution

The fourth proportional to 486,617.70, 729,926.46 and 249,828.78 is: 374,743.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,617.70 : 729,926.46 = 249,828.78 : x
  2. Step 2: Convert to fraction form
    486,617.70/729,926.46 = 249,828.78/x
  3. Step 3: Cross multiply
    486,617.70x = 729,926.46 × 249,828.78
  4. Step 4: Simplify right side
    486,617.70x = 182,356,636,991.52
  5. Step 5: Solve for x
    x = 182,356,636,991.52/486,617.70
  6. Step 6: Final answer
    x = 374,743.12

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1.5x scale

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.