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Finding the Fourth Proportional to 528,192.96, 728,896.32 and 298,746.24

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Solution

The fourth proportional to 528,192.96, 728,896.32 and 298,746.24 is: 412,264.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,192.96 : 728,896.32 = 298,746.24 : x
  2. Step 2: Convert to fraction form
    528,192.96/728,896.32 = 298,746.24/x
  3. Step 3: Cross multiply
    528,192.96x = 728,896.32 × 298,746.24
  4. Step 4: Simplify right side
    528,192.96x = 217,755,034,949.84
  5. Step 5: Solve for x
    x = 217,755,034,949.84/528,192.96
  6. Step 6: Final answer
    x = 412,264.18

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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.