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Finding the Fourth Proportional to 529,403.58, 730,880.91 and 348,640.38

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Solution

The fourth proportional to 529,403.58, 730,880.91 and 348,640.38 is: 481,323.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,403.58 : 730,880.91 = 348,640.38 : x
  2. Step 2: Convert to fraction form
    529,403.58/730,880.91 = 348,640.38/x
  3. Step 3: Cross multiply
    529,403.58x = 730,880.91 × 348,640.38
  4. Step 4: Simplify right side
    529,403.58x = 254,814,598,197.15
  5. Step 5: Solve for x
    x = 254,814,598,197.15/529,403.58
  6. Step 6: Final answer
    x = 481,323.90

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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.