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Finding the Fourth Proportional to 529,521.84, 730,747.54 and 287,804.34

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Solution

The fourth proportional to 529,521.84, 730,747.54 and 287,804.34 is: 397,174.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,521.84 : 730,747.54 = 287,804.34 : x
  2. Step 2: Convert to fraction form
    529,521.84/730,747.54 = 287,804.34/x
  3. Step 3: Cross multiply
    529,521.84x = 730,747.54 × 287,804.34
  4. Step 4: Simplify right side
    529,521.84x = 210,312,313,456.32
  5. Step 5: Solve for x
    x = 210,312,313,456.32/529,521.84
  6. Step 6: Final answer
    x = 397,174.01

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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.