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Finding the Fourth Proportional to 438,398.70, 604,929.51 and 244,782.78

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Solution

The fourth proportional to 438,398.70, 604,929.51 and 244,782.78 is: 337,766.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,398.70 : 604,929.51 = 244,782.78 : x
  2. Step 2: Convert to fraction form
    438,398.70/604,929.51 = 244,782.78/x
  3. Step 3: Cross multiply
    438,398.70x = 604,929.51 × 244,782.78
  4. Step 4: Simplify right side
    438,398.70x = 148,076,327,161.84
  5. Step 5: Solve for x
    x = 148,076,327,161.84/438,398.70
  6. Step 6: Final answer
    x = 337,766.35

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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.