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Finding the Fourth Proportional to 743,254.70, 1,026,117.09 and 489,344

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Solution

The fourth proportional to 743,254.70, 1,026,117.09 and 489,344 is: 675,574.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,254.70 : 1,026,117.09 = 489,344 : x
  2. Step 2: Convert to fraction form
    743,254.70/1,026,117.09 = 489,344/x
  3. Step 3: Cross multiply
    743,254.70x = 1,026,117.09 × 489,344
  4. Step 4: Simplify right side
    743,254.70x = 502,124,241,288.96
  5. Step 5: Solve for x
    x = 502,124,241,288.96/743,254.70
  6. Step 6: Final answer
    x = 675,574.93

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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.