Home / 903,298.61-1,243,422.82-780,734.68

Finding the Fourth Proportional to 903,298.61, 1,243,422.82 and 780,734.68

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Solution

The fourth proportional to 903,298.61, 1,243,422.82 and 780,734.68 is: 1,074,709.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,298.61 : 1,243,422.82 = 780,734.68 : x
  2. Step 2: Convert to fraction form
    903,298.61/1,243,422.82 = 780,734.68/x
  3. Step 3: Cross multiply
    903,298.61x = 1,243,422.82 × 780,734.68
  4. Step 4: Simplify right side
    903,298.61x = 970,783,317,477.40
  5. Step 5: Solve for x
    x = 970,783,317,477.40/903,298.61
  6. Step 6: Final answer
    x = 1,074,709.19

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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.