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Finding the Fourth Proportional to 896,963.10, 1,237,818.81 and 489,061.62

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Solution

The fourth proportional to 896,963.10, 1,237,818.81 and 489,061.62 is: 674,910.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,963.10 : 1,237,818.81 = 489,061.62 : x
  2. Step 2: Convert to fraction form
    896,963.10/1,237,818.81 = 489,061.62/x
  3. Step 3: Cross multiply
    896,963.10x = 1,237,818.81 × 489,061.62
  4. Step 4: Simplify right side
    896,963.10x = 605,369,672,485.07
  5. Step 5: Solve for x
    x = 605,369,672,485.07/896,963.10
  6. Step 6: Final answer
    x = 674,910.34

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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.