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Finding the Fourth Proportional to 529,215.88, 730,377.54 and 299,788.84

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Solution

The fourth proportional to 529,215.88, 730,377.54 and 299,788.84 is: 413,742.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,215.88 : 730,377.54 = 299,788.84 : x
  2. Step 2: Convert to fraction form
    529,215.88/730,377.54 = 299,788.84/x
  3. Step 3: Cross multiply
    529,215.88x = 730,377.54 × 299,788.84
  4. Step 4: Simplify right side
    529,215.88x = 218,959,035,478.65
  5. Step 5: Solve for x
    x = 218,959,035,478.65/529,215.88
  6. Step 6: Final answer
    x = 413,742.38

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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.