Home / 486,619.70-729,929.46-249,830.78

Finding the Fourth Proportional to 486,619.70, 729,929.46 and 249,830.78

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Solution

The fourth proportional to 486,619.70, 729,929.46 and 249,830.78 is: 374,746.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,619.70 : 729,929.46 = 249,830.78 : x
  2. Step 2: Convert to fraction form
    486,619.70/729,929.46 = 249,830.78/x
  3. Step 3: Cross multiply
    486,619.70x = 729,929.46 × 249,830.78
  4. Step 4: Simplify right side
    486,619.70x = 182,358,846,336.78
  5. Step 5: Solve for x
    x = 182,358,846,336.78/486,619.70
  6. Step 6: Final answer
    x = 374,746.12

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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.