Home / 785,729.50-1,084,255.68-463,365.70

Finding the Fourth Proportional to 785,729.50, 1,084,255.68 and 463,365.70

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Solution

The fourth proportional to 785,729.50, 1,084,255.68 and 463,365.70 is: 639,414.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,729.50 : 1,084,255.68 = 463,365.70 : x
  2. Step 2: Convert to fraction form
    785,729.50/1,084,255.68 = 463,365.70/x
  3. Step 3: Cross multiply
    785,729.50x = 1,084,255.68 × 463,365.70
  4. Step 4: Simplify right side
    785,729.50x = 502,406,892,142.18
  5. Step 5: Solve for x
    x = 502,406,892,142.18/785,729.50
  6. Step 6: Final answer
    x = 639,414.57

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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.