Home / 1,230,538.33-1,697,460.55-721,142.29

Finding the Fourth Proportional to 1,230,538.33, 1,697,460.55 and 721,142.29

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Solution

The fourth proportional to 1,230,538.33, 1,697,460.55 and 721,142.29 is: 994,776.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,538.33 : 1,697,460.55 = 721,142.29 : x
  2. Step 2: Convert to fraction form
    1,230,538.33/1,697,460.55 = 721,142.29/x
  3. Step 3: Cross multiply
    1,230,538.33x = 1,697,460.55 × 721,142.29
  4. Step 4: Simplify right side
    1,230,538.33x = 1,224,110,592,587.06
  5. Step 5: Solve for x
    x = 1,224,110,592,587.06/1,230,538.33
  6. Step 6: Final answer
    x = 994,776.48

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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.