Home / 877,744.70-1,316,617.05-809,315.90

Finding the Fourth Proportional to 877,744.70, 1,316,617.05 and 809,315.90

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Solution

The fourth proportional to 877,744.70, 1,316,617.05 and 809,315.90 is: 1,213,973.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,744.70 : 1,316,617.05 = 809,315.90 : x
  2. Step 2: Convert to fraction form
    877,744.70/1,316,617.05 = 809,315.90/x
  3. Step 3: Cross multiply
    877,744.70x = 1,316,617.05 × 809,315.90
  4. Step 4: Simplify right side
    877,744.70x = 1,065,559,112,776.10
  5. Step 5: Solve for x
    x = 1,065,559,112,776.10/877,744.70
  6. Step 6: Final answer
    x = 1,213,973.85

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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.