Home / 986,972.40-1,480,604.40-313,117.20

Finding the Fourth Proportional to 986,972.40, 1,480,604.40 and 313,117.20

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Solution

The fourth proportional to 986,972.40, 1,480,604.40 and 313,117.20 is: 469,722.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,972.40 : 1,480,604.40 = 313,117.20 : x
  2. Step 2: Convert to fraction form
    986,972.40/1,480,604.40 = 313,117.20/x
  3. Step 3: Cross multiply
    986,972.40x = 1,480,604.40 × 313,117.20
  4. Step 4: Simplify right side
    986,972.40x = 463,602,704,035.68
  5. Step 5: Solve for x
    x = 463,602,704,035.68/986,972.40
  6. Step 6: Final answer
    x = 469,722.06

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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.