Home / 1,351,923.25-1,865,859.01-771,143.53

Finding the Fourth Proportional to 1,351,923.25, 1,865,859.01 and 771,143.53

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Solution

The fourth proportional to 1,351,923.25, 1,865,859.01 and 771,143.53 is: 1,064,294.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351,923.25 : 1,865,859.01 = 771,143.53 : x
  2. Step 2: Convert to fraction form
    1,351,923.25/1,865,859.01 = 771,143.53/x
  3. Step 3: Cross multiply
    1,351,923.25x = 1,865,859.01 × 771,143.53
  4. Step 4: Simplify right side
    1,351,923.25x = 1,438,845,099,597.99
  5. Step 5: Solve for x
    x = 1,438,845,099,597.99/1,351,923.25
  6. Step 6: Final answer
    x = 1,064,294.96

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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.