Home / 1,538,205.14-2,122,765.90-849,921.35

Finding the Fourth Proportional to 1,538,205.14, 2,122,765.90 and 849,921.35

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Solution

The fourth proportional to 1,538,205.14, 2,122,765.90 and 849,921.35 is: 1,172,915.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,205.14 : 2,122,765.90 = 849,921.35 : x
  2. Step 2: Convert to fraction form
    1,538,205.14/2,122,765.90 = 849,921.35/x
  3. Step 3: Cross multiply
    1,538,205.14x = 2,122,765.90 × 849,921.35
  4. Step 4: Simplify right side
    1,538,205.14x = 1,804,184,044,598.53
  5. Step 5: Solve for x
    x = 1,804,184,044,598.53/1,538,205.14
  6. Step 6: Final answer
    x = 1,172,915.11

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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.