Home / 931,685.80-1,397,528.70-816,212.20

Finding the Fourth Proportional to 931,685.80, 1,397,528.70 and 816,212.20

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Solution

The fourth proportional to 931,685.80, 1,397,528.70 and 816,212.20 is: 1,224,318.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,685.80 : 1,397,528.70 = 816,212.20 : x
  2. Step 2: Convert to fraction form
    931,685.80/1,397,528.70 = 816,212.20/x
  3. Step 3: Cross multiply
    931,685.80x = 1,397,528.70 × 816,212.20
  4. Step 4: Simplify right side
    931,685.80x = 1,140,679,974,790.14
  5. Step 5: Solve for x
    x = 1,140,679,974,790.14/931,685.80
  6. Step 6: Final answer
    x = 1,224,318.30

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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.