Home / 1,138,281.96-1,709,781.66-903,278.28

Finding the Fourth Proportional to 1,138,281.96, 1,709,781.66 and 903,278.28

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Solution

The fourth proportional to 1,138,281.96, 1,709,781.66 and 903,278.28 is: 1,356,789.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,281.96 : 1,709,781.66 = 903,278.28 : x
  2. Step 2: Convert to fraction form
    1,138,281.96/1,709,781.66 = 903,278.28/x
  3. Step 3: Cross multiply
    1,138,281.96x = 1,709,781.66 × 903,278.28
  4. Step 4: Simplify right side
    1,138,281.96x = 1,544,408,637,020.34
  5. Step 5: Solve for x
    x = 1,544,408,637,020.34/1,138,281.96
  6. Step 6: Final answer
    x = 1,356,789.17

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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.