Home / 859,526.58-1,288,672.32-403,860.87

Finding the Fourth Proportional to 859,526.58, 1,288,672.32 and 403,860.87

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Solution

The fourth proportional to 859,526.58, 1,288,672.32 and 403,860.87 is: 605,501.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,526.58 : 1,288,672.32 = 403,860.87 : x
  2. Step 2: Convert to fraction form
    859,526.58/1,288,672.32 = 403,860.87/x
  3. Step 3: Cross multiply
    859,526.58x = 1,288,672.32 × 403,860.87
  4. Step 4: Simplify right side
    859,526.58x = 520,444,324,300.12
  5. Step 5: Solve for x
    x = 520,444,324,300.12/859,526.58
  6. Step 6: Final answer
    x = 605,501.14

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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.