Home / 1,344,855.53-1,855,071.43-821,320.53

Finding the Fourth Proportional to 1,344,855.53, 1,855,071.43 and 821,320.53

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Solution

The fourth proportional to 1,344,855.53, 1,855,071.43 and 821,320.53 is: 1,132,915.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344,855.53 : 1,855,071.43 = 821,320.53 : x
  2. Step 2: Convert to fraction form
    1,344,855.53/1,855,071.43 = 821,320.53/x
  3. Step 3: Cross multiply
    1,344,855.53x = 1,855,071.43 × 821,320.53
  4. Step 4: Simplify right side
    1,344,855.53x = 1,523,608,248,022.16
  5. Step 5: Solve for x
    x = 1,523,608,248,022.16/1,344,855.53
  6. Step 6: Final answer
    x = 1,132,915.93

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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.