Home / 986,536.53-1,479,846.38-312,602.90

Finding the Fourth Proportional to 986,536.53, 1,479,846.38 and 312,602.90

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Solution

The fourth proportional to 986,536.53, 1,479,846.38 and 312,602.90 is: 468,917.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,536.53 : 1,479,846.38 = 312,602.90 : x
  2. Step 2: Convert to fraction form
    986,536.53/1,479,846.38 = 312,602.90/x
  3. Step 3: Cross multiply
    986,536.53x = 1,479,846.38 × 312,602.90
  4. Step 4: Simplify right side
    986,536.53x = 462,604,260,980.26
  5. Step 5: Solve for x
    x = 462,604,260,980.26/986,536.53
  6. Step 6: Final answer
    x = 468,917.52

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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.