Home / 981,702.40-1,472,116.20-449,386.60

Finding the Fourth Proportional to 981,702.40, 1,472,116.20 and 449,386.60

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Solution

The fourth proportional to 981,702.40, 1,472,116.20 and 449,386.60 is: 673,879.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,702.40 : 1,472,116.20 = 449,386.60 : x
  2. Step 2: Convert to fraction form
    981,702.40/1,472,116.20 = 449,386.60/x
  3. Step 3: Cross multiply
    981,702.40x = 1,472,116.20 × 449,386.60
  4. Step 4: Simplify right side
    981,702.40x = 661,549,293,922.92
  5. Step 5: Solve for x
    x = 661,549,293,922.92/981,702.40
  6. Step 6: Final answer
    x = 673,879.67

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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.