Home / 780,488.93-1,170,716.73-359,764.81

Finding the Fourth Proportional to 780,488.93, 1,170,716.73 and 359,764.81

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Solution

The fourth proportional to 780,488.93, 1,170,716.73 and 359,764.81 is: 539,639.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,488.93 : 1,170,716.73 = 359,764.81 : x
  2. Step 2: Convert to fraction form
    780,488.93/1,170,716.73 = 359,764.81/x
  3. Step 3: Cross multiply
    780,488.93x = 1,170,716.73 × 359,764.81
  4. Step 4: Simplify right side
    780,488.93x = 421,182,677,656.36
  5. Step 5: Solve for x
    x = 421,182,677,656.36/780,488.93
  6. Step 6: Final answer
    x = 539,639.53

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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.