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Finding the Fourth Proportional to 489,818.47, 735,008.03 and 190,260.29

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Solution

The fourth proportional to 489,818.47, 735,008.03 and 190,260.29 is: 285,499.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,818.47 : 735,008.03 = 190,260.29 : x
  2. Step 2: Convert to fraction form
    489,818.47/735,008.03 = 190,260.29/x
  3. Step 3: Cross multiply
    489,818.47x = 735,008.03 × 190,260.29
  4. Step 4: Simplify right side
    489,818.47x = 139,842,839,988.83
  5. Step 5: Solve for x
    x = 139,842,839,988.83/489,818.47
  6. Step 6: Final answer
    x = 285,499.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.