Home / 1,178,890.34-1,626,868.69-642,346.34

Finding the Fourth Proportional to 1,178,890.34, 1,626,868.69 and 642,346.34

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Solution

The fourth proportional to 1,178,890.34, 1,626,868.69 and 642,346.34 is: 886,437.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,890.34 : 1,626,868.69 = 642,346.34 : x
  2. Step 2: Convert to fraction form
    1,178,890.34/1,626,868.69 = 642,346.34/x
  3. Step 3: Cross multiply
    1,178,890.34x = 1,626,868.69 × 642,346.34
  4. Step 4: Simplify right side
    1,178,890.34x = 1,045,013,148,682.09
  5. Step 5: Solve for x
    x = 1,045,013,148,682.09/1,178,890.34
  6. Step 6: Final answer
    x = 886,437.96

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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.