Home / 1,220,405.81-1,684,830.38-833,802.53

Finding the Fourth Proportional to 1,220,405.81, 1,684,830.38 and 833,802.53

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Solution

The fourth proportional to 1,220,405.81, 1,684,830.38 and 833,802.53 is: 1,151,105.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,405.81 : 1,684,830.38 = 833,802.53 : x
  2. Step 2: Convert to fraction form
    1,220,405.81/1,684,830.38 = 833,802.53/x
  3. Step 3: Cross multiply
    1,220,405.81x = 1,684,830.38 × 833,802.53
  4. Step 4: Simplify right side
    1,220,405.81x = 1,404,815,820,871.70
  5. Step 5: Solve for x
    x = 1,404,815,820,871.70/1,220,405.81
  6. Step 6: Final answer
    x = 1,151,105.49

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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.