Home / 790,950.69-1,091,506.50-428,366.25

Finding the Fourth Proportional to 790,950.69, 1,091,506.50 and 428,366.25

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Solution

The fourth proportional to 790,950.69, 1,091,506.50 and 428,366.25 is: 591,142.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,950.69 : 1,091,506.50 = 428,366.25 : x
  2. Step 2: Convert to fraction form
    790,950.69/1,091,506.50 = 428,366.25/x
  3. Step 3: Cross multiply
    790,950.69x = 1,091,506.50 × 428,366.25
  4. Step 4: Simplify right side
    790,950.69x = 467,564,546,255.63
  5. Step 5: Solve for x
    x = 467,564,546,255.63/790,950.69
  6. Step 6: Final answer
    x = 591,142.47

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Double scale
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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.