Home / 1,261,412.56-1,740,735.72-688,448.08

Finding the Fourth Proportional to 1,261,412.56, 1,740,735.72 and 688,448.08

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Solution

The fourth proportional to 1,261,412.56, 1,740,735.72 and 688,448.08 is: 950,050.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,412.56 : 1,740,735.72 = 688,448.08 : x
  2. Step 2: Convert to fraction form
    1,261,412.56/1,740,735.72 = 688,448.08/x
  3. Step 3: Cross multiply
    1,261,412.56x = 1,740,735.72 × 688,448.08
  4. Step 4: Simplify right side
    1,261,412.56x = 1,198,406,164,221.42
  5. Step 5: Solve for x
    x = 1,198,406,164,221.42/1,261,412.56
  6. Step 6: Final answer
    x = 950,050.92

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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.