Home / 760,310.88-1,139,580.58-423,190.29

Finding the Fourth Proportional to 760,310.88, 1,139,580.58 and 423,190.29

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Solution

The fourth proportional to 760,310.88, 1,139,580.58 and 423,190.29 is: 634,292.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,310.88 : 1,139,580.58 = 423,190.29 : x
  2. Step 2: Convert to fraction form
    760,310.88/1,139,580.58 = 423,190.29/x
  3. Step 3: Cross multiply
    760,310.88x = 1,139,580.58 × 423,190.29
  4. Step 4: Simplify right side
    760,310.88x = 482,259,436,128.57
  5. Step 5: Solve for x
    x = 482,259,436,128.57/760,310.88
  6. Step 6: Final answer
    x = 634,292.43

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1.5x scale

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.