Home / 1,008,123.85-1,512,185.78-1,001,125.45

Finding the Fourth Proportional to 1,008,123.85, 1,512,185.78 and 1,001,125.45

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Solution

The fourth proportional to 1,008,123.85, 1,512,185.78 and 1,001,125.45 is: 1,501,688.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,123.85 : 1,512,185.78 = 1,001,125.45 : x
  2. Step 2: Convert to fraction form
    1,008,123.85/1,512,185.78 = 1,001,125.45/x
  3. Step 3: Cross multiply
    1,008,123.85x = 1,512,185.78 × 1,001,125.45
  4. Step 4: Simplify right side
    1,008,123.85x = 1,513,887,664,480.47
  5. Step 5: Solve for x
    x = 1,513,887,664,480.47/1,008,123.85
  6. Step 6: Final answer
    x = 1,501,688.18

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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.