Home / 1,266,129.12-1,747,280.16-693,160.32

Finding the Fourth Proportional to 1,266,129.12, 1,747,280.16 and 693,160.32

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Solution

The fourth proportional to 1,266,129.12, 1,747,280.16 and 693,160.32 is: 956,573.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,129.12 : 1,747,280.16 = 693,160.32 : x
  2. Step 2: Convert to fraction form
    1,266,129.12/1,747,280.16 = 693,160.32/x
  3. Step 3: Cross multiply
    1,266,129.12x = 1,747,280.16 × 693,160.32
  4. Step 4: Simplify right side
    1,266,129.12x = 1,211,145,274,835.25
  5. Step 5: Solve for x
    x = 1,211,145,274,835.25/1,266,129.12
  6. Step 6: Final answer
    x = 956,573.27

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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.