Home / 768,417.21-1,060,410.75-424,274.55

Finding the Fourth Proportional to 768,417.21, 1,060,410.75 and 424,274.55

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Solution

The fourth proportional to 768,417.21, 1,060,410.75 and 424,274.55 is: 585,496.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,417.21 : 1,060,410.75 = 424,274.55 : x
  2. Step 2: Convert to fraction form
    768,417.21/1,060,410.75 = 424,274.55/x
  3. Step 3: Cross multiply
    768,417.21x = 1,060,410.75 × 424,274.55
  4. Step 4: Simplify right side
    768,417.21x = 449,905,293,771.41
  5. Step 5: Solve for x
    x = 449,905,293,771.41/768,417.21
  6. Step 6: Final answer
    x = 585,496.12

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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.