Home / 1,269,220.90-1,903,837.95-427,779.94

Finding the Fourth Proportional to 1,269,220.90, 1,903,837.95 and 427,779.94

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Solution

The fourth proportional to 1,269,220.90, 1,903,837.95 and 427,779.94 is: 641,672.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,220.90 : 1,903,837.95 = 427,779.94 : x
  2. Step 2: Convert to fraction form
    1,269,220.90/1,903,837.95 = 427,779.94/x
  3. Step 3: Cross multiply
    1,269,220.90x = 1,903,837.95 × 427,779.94
  4. Step 4: Simplify right side
    1,269,220.90x = 814,423,684,020.72
  5. Step 5: Solve for x
    x = 814,423,684,020.72/1,269,220.90
  6. Step 6: Final answer
    x = 641,672.13

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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.