Home / 1,220,980.30-1,683,010.92-962,438.02

Finding the Fourth Proportional to 1,220,980.30, 1,683,010.92 and 962,438.02

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Solution

The fourth proportional to 1,220,980.30, 1,683,010.92 and 962,438.02 is: 1,326,633.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,980.30 : 1,683,010.92 = 962,438.02 : x
  2. Step 2: Convert to fraction form
    1,220,980.30/1,683,010.92 = 962,438.02/x
  3. Step 3: Cross multiply
    1,220,980.30x = 1,683,010.92 × 962,438.02
  4. Step 4: Simplify right side
    1,220,980.30x = 1,619,793,697,483.18
  5. Step 5: Solve for x
    x = 1,619,793,697,483.18/1,220,980.30
  6. Step 6: Final answer
    x = 1,326,633.77

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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.