Home / 789,858.81-1,184,061.33-429,503.22

Finding the Fourth Proportional to 789,858.81, 1,184,061.33 and 429,503.22

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Solution

The fourth proportional to 789,858.81, 1,184,061.33 and 429,503.22 is: 643,859.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,858.81 : 1,184,061.33 = 429,503.22 : x
  2. Step 2: Convert to fraction form
    789,858.81/1,184,061.33 = 429,503.22/x
  3. Step 3: Cross multiply
    789,858.81x = 1,184,061.33 × 429,503.22
  4. Step 4: Simplify right side
    789,858.81x = 508,558,153,912.48
  5. Step 5: Solve for x
    x = 508,558,153,912.48/789,858.81
  6. Step 6: Final answer
    x = 643,859.57

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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.