Home / 1,221,505.68-1,831,963.28-512,064.76

Finding the Fourth Proportional to 1,221,505.68, 1,831,963.28 and 512,064.76

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Solution

The fourth proportional to 1,221,505.68, 1,831,963.28 and 512,064.76 is: 767,973.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,505.68 : 1,831,963.28 = 512,064.76 : x
  2. Step 2: Convert to fraction form
    1,221,505.68/1,831,963.28 = 512,064.76/x
  3. Step 3: Cross multiply
    1,221,505.68x = 1,831,963.28 × 512,064.76
  4. Step 4: Simplify right side
    1,221,505.68x = 938,083,837,302.01
  5. Step 5: Solve for x
    x = 938,083,837,302.01/1,221,505.68
  6. Step 6: Final answer
    x = 767,973.37

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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.