Home / 1,765,438.80-2,646,084.60-816,805.68

Finding the Fourth Proportional to 1,765,438.80, 2,646,084.60 and 816,805.68

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Solution

The fourth proportional to 1,765,438.80, 2,646,084.60 and 816,805.68 is: 1,224,249.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,765,438.80 : 2,646,084.60 = 816,805.68 : x
  2. Step 2: Convert to fraction form
    1,765,438.80/2,646,084.60 = 816,805.68/x
  3. Step 3: Cross multiply
    1,765,438.80x = 2,646,084.60 × 816,805.68
  4. Step 4: Simplify right side
    1,765,438.80x = 2,161,336,931,040.53
  5. Step 5: Solve for x
    x = 2,161,336,931,040.53/1,765,438.80
  6. Step 6: Final answer
    x = 1,224,249.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.