Home / 790,430.38-1,185,648.63-191,390.74

Finding the Fourth Proportional to 790,430.38, 1,185,648.63 and 191,390.74

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Solution

The fourth proportional to 790,430.38, 1,185,648.63 and 191,390.74 is: 287,086.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,430.38 : 1,185,648.63 = 191,390.74 : x
  2. Step 2: Convert to fraction form
    790,430.38/1,185,648.63 = 191,390.74/x
  3. Step 3: Cross multiply
    790,430.38x = 1,185,648.63 × 191,390.74
  4. Step 4: Simplify right side
    790,430.38x = 226,922,168,675.69
  5. Step 5: Solve for x
    x = 226,922,168,675.69/790,430.38
  6. Step 6: Final answer
    x = 287,086.85

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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.