Home / 691,453.76-1,036,281.54-354,208.64

Finding the Fourth Proportional to 691,453.76, 1,036,281.54 and 354,208.64

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Solution

The fourth proportional to 691,453.76, 1,036,281.54 and 354,208.64 is: 530,852.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,453.76 : 1,036,281.54 = 354,208.64 : x
  2. Step 2: Convert to fraction form
    691,453.76/1,036,281.54 = 354,208.64/x
  3. Step 3: Cross multiply
    691,453.76x = 1,036,281.54 × 354,208.64
  4. Step 4: Simplify right side
    691,453.76x = 367,059,874,940.51
  5. Step 5: Solve for x
    x = 367,059,874,940.51/691,453.76
  6. Step 6: Final answer
    x = 530,852.38

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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.