Home / 981,309.48-1,470,461.84-660,272.23

Finding the Fourth Proportional to 981,309.48, 1,470,461.84 and 660,272.23

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Solution

The fourth proportional to 981,309.48, 1,470,461.84 and 660,272.23 is: 989,397.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,309.48 : 1,470,461.84 = 660,272.23 : x
  2. Step 2: Convert to fraction form
    981,309.48/1,470,461.84 = 660,272.23/x
  3. Step 3: Cross multiply
    981,309.48x = 1,470,461.84 × 660,272.23
  4. Step 4: Simplify right side
    981,309.48x = 970,905,118,226.70
  5. Step 5: Solve for x
    x = 970,905,118,226.70/981,309.48
  6. Step 6: Final answer
    x = 989,397.47

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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.