Home / 1,613,122.40-2,419,566.96-771,448.16

Finding the Fourth Proportional to 1,613,122.40, 2,419,566.96 and 771,448.16

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Solution

The fourth proportional to 1,613,122.40, 2,419,566.96 and 771,448.16 is: 1,157,116.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613,122.40 : 2,419,566.96 = 771,448.16 : x
  2. Step 2: Convert to fraction form
    1,613,122.40/2,419,566.96 = 771,448.16/x
  3. Step 3: Cross multiply
    1,613,122.40x = 2,419,566.96 × 771,448.16
  4. Step 4: Simplify right side
    1,613,122.40x = 1,866,570,479,288.79
  5. Step 5: Solve for x
    x = 1,866,570,479,288.79/1,613,122.40
  6. Step 6: Final answer
    x = 1,157,116.46

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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.