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Finding the Fourth Proportional to 981,756.06, 1,470,709.53 and 508,751.70

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Solution

The fourth proportional to 981,756.06, 1,470,709.53 and 508,751.70 is: 762,130.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,756.06 : 1,470,709.53 = 508,751.70 : x
  2. Step 2: Convert to fraction form
    981,756.06/1,470,709.53 = 508,751.70/x
  3. Step 3: Cross multiply
    981,756.06x = 1,470,709.53 × 508,751.70
  4. Step 4: Simplify right side
    981,756.06x = 748,225,973,593.70
  5. Step 5: Solve for x
    x = 748,225,973,593.70/981,756.06
  6. Step 6: Final answer
    x = 762,130.23

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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.