Home / 877,617.70-1,316,426.55-809,188.90

Finding the Fourth Proportional to 877,617.70, 1,316,426.55 and 809,188.90

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Solution

The fourth proportional to 877,617.70, 1,316,426.55 and 809,188.90 is: 1,213,783.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,617.70 : 1,316,426.55 = 809,188.90 : x
  2. Step 2: Convert to fraction form
    877,617.70/1,316,426.55 = 809,188.90/x
  3. Step 3: Cross multiply
    877,617.70x = 1,316,426.55 × 809,188.90
  4. Step 4: Simplify right side
    877,617.70x = 1,065,237,751,925.30
  5. Step 5: Solve for x
    x = 1,065,237,751,925.30/877,617.70
  6. Step 6: Final answer
    x = 1,213,783.35

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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.