Home / 1,245,697.80-1,865,436.30-822,683.40

Finding the Fourth Proportional to 1,245,697.80, 1,865,436.30 and 822,683.40

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Solution

The fourth proportional to 1,245,697.80, 1,865,436.30 and 822,683.40 is: 1,231,970.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,697.80 : 1,865,436.30 = 822,683.40 : x
  2. Step 2: Convert to fraction form
    1,245,697.80/1,865,436.30 = 822,683.40/x
  3. Step 3: Cross multiply
    1,245,697.80x = 1,865,436.30 × 822,683.40
  4. Step 4: Simplify right side
    1,245,697.80x = 1,534,663,477,767.42
  5. Step 5: Solve for x
    x = 1,534,663,477,767.42/1,245,697.80
  6. Step 6: Final answer
    x = 1,231,970.93

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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.