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Finding the Fourth Proportional to 539,736.16, 744,751.92 and 313,342.24

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Solution

The fourth proportional to 539,736.16, 744,751.92 and 313,342.24 is: 432,363.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,736.16 : 744,751.92 = 313,342.24 : x
  2. Step 2: Convert to fraction form
    539,736.16/744,751.92 = 313,342.24/x
  3. Step 3: Cross multiply
    539,736.16x = 744,751.92 × 313,342.24
  4. Step 4: Simplify right side
    539,736.16x = 233,362,234,857.10
  5. Step 5: Solve for x
    x = 233,362,234,857.10/539,736.16
  6. Step 6: Final answer
    x = 432,363.54

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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.