Home / 877,790.20-1,316,685.30-809,361.40

Finding the Fourth Proportional to 877,790.20, 1,316,685.30 and 809,361.40

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Solution

The fourth proportional to 877,790.20, 1,316,685.30 and 809,361.40 is: 1,214,042.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,790.20 : 1,316,685.30 = 809,361.40 : x
  2. Step 2: Convert to fraction form
    877,790.20/1,316,685.30 = 809,361.40/x
  3. Step 3: Cross multiply
    877,790.20x = 1,316,685.30 × 809,361.40
  4. Step 4: Simplify right side
    877,790.20x = 1,065,674,257,767.42
  5. Step 5: Solve for x
    x = 1,065,674,257,767.42/877,790.20
  6. Step 6: Final answer
    x = 1,214,042.10

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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.