Home / 1,220,359.84-1,684,016.40-683,712.16

Finding the Fourth Proportional to 1,220,359.84, 1,684,016.40 and 683,712.16

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Solution

The fourth proportional to 1,220,359.84, 1,684,016.40 and 683,712.16 is: 943,477.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,359.84 : 1,684,016.40 = 683,712.16 : x
  2. Step 2: Convert to fraction form
    1,220,359.84/1,684,016.40 = 683,712.16/x
  3. Step 3: Cross multiply
    1,220,359.84x = 1,684,016.40 × 683,712.16
  4. Step 4: Simplify right side
    1,220,359.84x = 1,151,382,490,319.42
  5. Step 5: Solve for x
    x = 1,151,382,490,319.42/1,220,359.84
  6. Step 6: Final answer
    x = 943,477.86

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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.