Home / 826,464.80-1,240,426.20-489,083.60

Finding the Fourth Proportional to 826,464.80, 1,240,426.20 and 489,083.60

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Solution

The fourth proportional to 826,464.80, 1,240,426.20 and 489,083.60 is: 734,056.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,464.80 : 1,240,426.20 = 489,083.60 : x
  2. Step 2: Convert to fraction form
    826,464.80/1,240,426.20 = 489,083.60/x
  3. Step 3: Cross multiply
    826,464.80x = 1,240,426.20 × 489,083.60
  4. Step 4: Simplify right side
    826,464.80x = 606,672,111,430.32
  5. Step 5: Solve for x
    x = 606,672,111,430.32/826,464.80
  6. Step 6: Final answer
    x = 734,056.81

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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.