Home / 1,045,643.30-1,570,020.15-809,252.90

Finding the Fourth Proportional to 1,045,643.30, 1,570,020.15 and 809,252.90

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Solution

The fourth proportional to 1,045,643.30, 1,570,020.15 and 809,252.90 is: 1,215,082.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045,643.30 : 1,570,020.15 = 809,252.90 : x
  2. Step 2: Convert to fraction form
    1,045,643.30/1,570,020.15 = 809,252.90/x
  3. Step 3: Cross multiply
    1,045,643.30x = 1,570,020.15 × 809,252.90
  4. Step 4: Simplify right side
    1,045,643.30x = 1,270,543,359,445.94
  5. Step 5: Solve for x
    x = 1,270,543,359,445.94/1,045,643.30
  6. Step 6: Final answer
    x = 1,215,082.96

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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.