Home / 912,933.40-1,368,233.70-663,323.80

Finding the Fourth Proportional to 912,933.40, 1,368,233.70 and 663,323.80

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Solution

The fourth proportional to 912,933.40, 1,368,233.70 and 663,323.80 is: 994,138.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,933.40 : 1,368,233.70 = 663,323.80 : x
  2. Step 2: Convert to fraction form
    912,933.40/1,368,233.70 = 663,323.80/x
  3. Step 3: Cross multiply
    912,933.40x = 1,368,233.70 × 663,323.80
  4. Step 4: Simplify right side
    912,933.40x = 907,581,977,172.06
  5. Step 5: Solve for x
    x = 907,581,977,172.06/912,933.40
  6. Step 6: Final answer
    x = 994,138.21

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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.