Home / 501,281.32-691,704.06-286,435.36

Finding the Fourth Proportional to 501,281.32, 691,704.06 and 286,435.36

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Solution

The fourth proportional to 501,281.32, 691,704.06 and 286,435.36 is: 395,244.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,281.32 : 691,704.06 = 286,435.36 : x
  2. Step 2: Convert to fraction form
    501,281.32/691,704.06 = 286,435.36/x
  3. Step 3: Cross multiply
    501,281.32x = 691,704.06 × 286,435.36
  4. Step 4: Simplify right side
    501,281.32x = 198,128,501,439.56
  5. Step 5: Solve for x
    x = 198,128,501,439.56/501,281.32
  6. Step 6: Final answer
    x = 395,244.13

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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.