Home / 1,221,208.02-1,683,319.86-962,663.40

Finding the Fourth Proportional to 1,221,208.02, 1,683,319.86 and 962,663.40

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Solution

The fourth proportional to 1,221,208.02, 1,683,319.86 and 962,663.40 is: 1,326,940.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,208.02 : 1,683,319.86 = 962,663.40 : x
  2. Step 2: Convert to fraction form
    1,221,208.02/1,683,319.86 = 962,663.40/x
  3. Step 3: Cross multiply
    1,221,208.02x = 1,683,319.86 × 962,663.40
  4. Step 4: Simplify right side
    1,221,208.02x = 1,620,470,419,715.12
  5. Step 5: Solve for x
    x = 1,620,470,419,715.12/1,221,208.02
  6. Step 6: Final answer
    x = 1,326,940.53

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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.