Home / 957,970.35-1,321,989.39-522,386.60

Finding the Fourth Proportional to 957,970.35, 1,321,989.39 and 522,386.60

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Solution

The fourth proportional to 957,970.35, 1,321,989.39 and 522,386.60 is: 720,888.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,970.35 : 1,321,989.39 = 522,386.60 : x
  2. Step 2: Convert to fraction form
    957,970.35/1,321,989.39 = 522,386.60/x
  3. Step 3: Cross multiply
    957,970.35x = 1,321,989.39 × 522,386.60
  4. Step 4: Simplify right side
    957,970.35x = 690,589,536,068.23
  5. Step 5: Solve for x
    x = 690,589,536,068.23/957,970.35
  6. Step 6: Final answer
    x = 720,888.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.