Home / 1,046,131.40-1,569,197.10-809,643.80

Finding the Fourth Proportional to 1,046,131.40, 1,569,197.10 and 809,643.80

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Solution

The fourth proportional to 1,046,131.40, 1,569,197.10 and 809,643.80 is: 1,214,465.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046,131.40 : 1,569,197.10 = 809,643.80 : x
  2. Step 2: Convert to fraction form
    1,046,131.40/1,569,197.10 = 809,643.80/x
  3. Step 3: Cross multiply
    1,046,131.40x = 1,569,197.10 × 809,643.80
  4. Step 4: Simplify right side
    1,046,131.40x = 1,270,490,702,992.98
  5. Step 5: Solve for x
    x = 1,270,490,702,992.98/1,046,131.40
  6. Step 6: Final answer
    x = 1,214,465.70

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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.