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Finding the Fourth Proportional to 528,160.51, 728,954.67 and 313,418.98

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Solution

The fourth proportional to 528,160.51, 728,954.67 and 313,418.98 is: 432,573.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,160.51 : 728,954.67 = 313,418.98 : x
  2. Step 2: Convert to fraction form
    528,160.51/728,954.67 = 313,418.98/x
  3. Step 3: Cross multiply
    528,160.51x = 728,954.67 × 313,418.98
  4. Step 4: Simplify right side
    528,160.51x = 228,468,229,137.64
  5. Step 5: Solve for x
    x = 228,468,229,137.64/528,160.51
  6. Step 6: Final answer
    x = 432,573.48

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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.