Home / 790,220.34-1,185,209.82-257,740.38

Finding the Fourth Proportional to 790,220.34, 1,185,209.82 and 257,740.38

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Solution

The fourth proportional to 790,220.34, 1,185,209.82 and 257,740.38 is: 386,571.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,220.34 : 1,185,209.82 = 257,740.38 : x
  2. Step 2: Convert to fraction form
    790,220.34/1,185,209.82 = 257,740.38/x
  3. Step 3: Cross multiply
    790,220.34x = 1,185,209.82 × 257,740.38
  4. Step 4: Simplify right side
    790,220.34x = 305,476,429,386.53
  5. Step 5: Solve for x
    x = 305,476,429,386.53/790,220.34
  6. Step 6: Final answer
    x = 386,571.21

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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.