Home / 815,713.40-1,125,716.42-558,130.61

Finding the Fourth Proportional to 815,713.40, 1,125,716.42 and 558,130.61

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Solution

The fourth proportional to 815,713.40, 1,125,716.42 and 558,130.61 is: 770,242.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,713.40 : 1,125,716.42 = 558,130.61 : x
  2. Step 2: Convert to fraction form
    815,713.40/1,125,716.42 = 558,130.61/x
  3. Step 3: Cross multiply
    815,713.40x = 1,125,716.42 × 558,130.61
  4. Step 4: Simplify right side
    815,713.40x = 628,296,783,762.38
  5. Step 5: Solve for x
    x = 628,296,783,762.38/815,713.40
  6. Step 6: Final answer
    x = 770,242.08

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1.5x scale

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.