Home / 1,185,719.10-1,778,572.70-287,160.82

Finding the Fourth Proportional to 1,185,719.10, 1,778,572.70 and 287,160.82

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Solution

The fourth proportional to 1,185,719.10, 1,778,572.70 and 287,160.82 is: 430,739.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,719.10 : 1,778,572.70 = 287,160.82 : x
  2. Step 2: Convert to fraction form
    1,185,719.10/1,778,572.70 = 287,160.82/x
  3. Step 3: Cross multiply
    1,185,719.10x = 1,778,572.70 × 287,160.82
  4. Step 4: Simplify right side
    1,185,719.10x = 510,736,394,961.61
  5. Step 5: Solve for x
    x = 510,736,394,961.61/1,185,719.10
  6. Step 6: Final answer
    x = 430,739.79

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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.