Home / 980,438.80-1,352,795.66-572,355.44

Finding the Fourth Proportional to 980,438.80, 1,352,795.66 and 572,355.44

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Solution

The fourth proportional to 980,438.80, 1,352,795.66 and 572,355.44 is: 789,727.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,438.80 : 1,352,795.66 = 572,355.44 : x
  2. Step 2: Convert to fraction form
    980,438.80/1,352,795.66 = 572,355.44/x
  3. Step 3: Cross multiply
    980,438.80x = 1,352,795.66 × 572,355.44
  4. Step 4: Simplify right side
    980,438.80x = 774,279,955,209.39
  5. Step 5: Solve for x
    x = 774,279,955,209.39/980,438.80
  6. Step 6: Final answer
    x = 789,727.98

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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.