Home / 1,129,369.84-1,558,085.92-645,675.16

Finding the Fourth Proportional to 1,129,369.84, 1,558,085.92 and 645,675.16

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Solution

The fourth proportional to 1,129,369.84, 1,558,085.92 and 645,675.16 is: 890,777.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,369.84 : 1,558,085.92 = 645,675.16 : x
  2. Step 2: Convert to fraction form
    1,129,369.84/1,558,085.92 = 645,675.16/x
  3. Step 3: Cross multiply
    1,129,369.84x = 1,558,085.92 × 645,675.16
  4. Step 4: Simplify right side
    1,129,369.84x = 1,006,017,375,689.75
  5. Step 5: Solve for x
    x = 1,006,017,375,689.75/1,129,369.84
  6. Step 6: Final answer
    x = 890,777.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.