Home / 1,220,358.84-1,684,015.02-683,711.16

Finding the Fourth Proportional to 1,220,358.84, 1,684,015.02 and 683,711.16

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Solution

The fourth proportional to 1,220,358.84, 1,684,015.02 and 683,711.16 is: 943,476.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,358.84 : 1,684,015.02 = 683,711.16 : x
  2. Step 2: Convert to fraction form
    1,220,358.84/1,684,015.02 = 683,711.16/x
  3. Step 3: Cross multiply
    1,220,358.84x = 1,684,015.02 × 683,711.16
  4. Step 4: Simplify right side
    1,220,358.84x = 1,151,379,862,781.62
  5. Step 5: Solve for x
    x = 1,151,379,862,781.62/1,220,358.84
  6. Step 6: Final answer
    x = 943,476.48

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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.