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Finding the Fourth Proportional to 544,521.36, 751,329.36 and 318,123.12

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Solution

The fourth proportional to 544,521.36, 751,329.36 and 318,123.12 is: 438,945.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,521.36 : 751,329.36 = 318,123.12 : x
  2. Step 2: Convert to fraction form
    544,521.36/751,329.36 = 318,123.12/x
  3. Step 3: Cross multiply
    544,521.36x = 751,329.36 × 318,123.12
  4. Step 4: Simplify right side
    544,521.36x = 239,015,240,150.80
  5. Step 5: Solve for x
    x = 239,015,240,150.80/544,521.36
  6. Step 6: Final answer
    x = 438,945.57

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1.5x scale

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.