Home / 1,288,992.60-1,931,156.10-1,102,368.60

Finding the Fourth Proportional to 1,288,992.60, 1,931,156.10 and 1,102,368.60

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Solution

The fourth proportional to 1,288,992.60, 1,931,156.10 and 1,102,368.60 is: 1,651,557.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,992.60 : 1,931,156.10 = 1,102,368.60 : x
  2. Step 2: Convert to fraction form
    1,288,992.60/1,931,156.10 = 1,102,368.60/x
  3. Step 3: Cross multiply
    1,288,992.60x = 1,931,156.10 × 1,102,368.60
  4. Step 4: Simplify right side
    1,288,992.60x = 2,128,845,846,338.46
  5. Step 5: Solve for x
    x = 2,128,845,846,338.46/1,288,992.60
  6. Step 6: Final answer
    x = 1,651,557.85

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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.