Home / 868,374.24-1,198,368.90-505,788.72

Finding the Fourth Proportional to 868,374.24, 1,198,368.90 and 505,788.72

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Solution

The fourth proportional to 868,374.24, 1,198,368.90 and 505,788.72 is: 697,995.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,374.24 : 1,198,368.90 = 505,788.72 : x
  2. Step 2: Convert to fraction form
    868,374.24/1,198,368.90 = 505,788.72/x
  3. Step 3: Cross multiply
    868,374.24x = 1,198,368.90 × 505,788.72
  4. Step 4: Simplify right side
    868,374.24x = 606,121,472,018.81
  5. Step 5: Solve for x
    x = 606,121,472,018.81/868,374.24
  6. Step 6: Final answer
    x = 697,995.68

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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.