Home / 826,701.71-1,239,737.80-489,837.42

Finding the Fourth Proportional to 826,701.71, 1,239,737.80 and 489,837.42

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Solution

The fourth proportional to 826,701.71, 1,239,737.80 and 489,837.42 is: 734,569.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,701.71 : 1,239,737.80 = 489,837.42 : x
  2. Step 2: Convert to fraction form
    826,701.71/1,239,737.80 = 489,837.42/x
  3. Step 3: Cross multiply
    826,701.71x = 1,239,737.80 × 489,837.42
  4. Step 4: Simplify right side
    826,701.71x = 607,269,965,428.48
  5. Step 5: Solve for x
    x = 607,269,965,428.48/826,701.71
  6. Step 6: Final answer
    x = 734,569.63

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1.5x scale

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.